Home / 475,180.20-655,760.40-260,320.80

Finding the Fourth Proportional to 475,180.20, 655,760.40 and 260,320.80

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Solution

The fourth proportional to 475,180.20, 655,760.40 and 260,320.80 is: 359,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,180.20 : 655,760.40 = 260,320.80 : x
  2. Step 2: Convert to fraction form
    475,180.20/655,760.40 = 260,320.80/x
  3. Step 3: Cross multiply
    475,180.20x = 655,760.40 × 260,320.80
  4. Step 4: Simplify right side
    475,180.20x = 170,708,071,936.32
  5. Step 5: Solve for x
    x = 170,708,071,936.32/475,180.20
  6. Step 6: Final answer
    x = 359,249.13

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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.