Home / 377,869.60-521,456-208,100

Finding the Fourth Proportional to 377,869.60, 521,456 and 208,100

Calculator

Solution

The fourth proportional to 377,869.60, 521,456 and 208,100 is: 287,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,869.60 : 521,456 = 208,100 : x
  2. Step 2: Convert to fraction form
    377,869.60/521,456 = 208,100/x
  3. Step 3: Cross multiply
    377,869.60x = 521,456 × 208,100
  4. Step 4: Simplify right side
    377,869.60x = 108,514,993,600
  5. Step 5: Solve for x
    x = 108,514,993,600/377,869.60
  6. Step 6: Final answer
    x = 287,175.77

Related Problems

Find fourth proportional to 188,934.80, 260,728 and 104,050
Half scale
Find fourth proportional to 755,739.20, 1,042,912 and 416,200
Double scale
Find fourth proportional to 377,870.60, 521,457.38 and 208,101
Similar ratio
Find fourth proportional to 566,804.40, 782,184 and 312,150
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.