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Finding the Fourth Proportional to 475,031.28, 655,519.02 and 260,129.90

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Solution

The fourth proportional to 475,031.28, 655,519.02 and 260,129.90 is: 358,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,031.28 : 655,519.02 = 260,129.90 : x
  2. Step 2: Convert to fraction form
    475,031.28/655,519.02 = 260,129.90/x
  3. Step 3: Cross multiply
    475,031.28x = 655,519.02 × 260,129.90
  4. Step 4: Simplify right side
    475,031.28x = 170,520,097,120.70
  5. Step 5: Solve for x
    x = 170,520,097,120.70/475,031.28
  6. Step 6: Final answer
    x = 358,966.04

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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.