Home / 275,227.50-387,577.50

Finding the Third Proportional to 275,227.50 and 387,577.50

Calculator

Solution

The third proportional to 275,227.50 and 387,577.50 is: 545,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,227.50 : 387,577.50 = 387,577.50 : x
  2. Step 2: Convert to fraction form
    275,227.50/387,577.50 = 387,577.50/x
  3. Step 3: Cross multiply
    275,227.50x = 387,577.50 × 387,577.50
  4. Step 4: Simplify right side
    275,227.50x = 150,216,318,506.25
  5. Step 5: Solve for x
    x = 150,216,318,506.25/275,227.50
  6. Step 6: Final answer
    x = 545,789.64

Related Problems

Find third proportional to 137,613.75 and 193,788.75
Half scale
Find third proportional to 550,455 and 775,155
Double scale
Find third proportional to 275,230 and 387,580
Similar ratio
Find third proportional to 412,841.25 and 581,366.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.