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Finding the Fourth Proportional to 475,030.60, 655,517.67 and 260,129.20

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Solution

The fourth proportional to 475,030.60, 655,517.67 and 260,129.20 is: 358,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,030.60 : 655,517.67 = 260,129.20 : x
  2. Step 2: Convert to fraction form
    475,030.60/655,517.67 = 260,129.20/x
  3. Step 3: Cross multiply
    475,030.60x = 655,517.67 × 260,129.20
  4. Step 4: Simplify right side
    475,030.60x = 170,519,287,082.96
  5. Step 5: Solve for x
    x = 170,519,287,082.96/475,030.60
  6. Step 6: Final answer
    x = 358,964.85

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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.