Home / 368.80-508.68-295

Finding the Fourth Proportional to 368.80, 508.68 and 295

Calculator

Solution

The fourth proportional to 368.80, 508.68 and 295 is: 406.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.80 : 508.68 = 295 : x
  2. Step 2: Convert to fraction form
    368.80/508.68 = 295/x
  3. Step 3: Cross multiply
    368.80x = 508.68 × 295
  4. Step 4: Simplify right side
    368.80x = 150,060.60
  5. Step 5: Solve for x
    x = 150,060.60/368.80
  6. Step 6: Final answer
    x = 406.89

Related Problems

Find fourth proportional to 184.40, 254.34 and 147.50
Half scale
Find fourth proportional to 737.60, 1,017.36 and 590
Double scale
Find fourth proportional to 369.80, 510.06 and 296
Similar ratio
Find fourth proportional to 553.20, 763.02 and 442.50
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.