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Finding the Fourth Proportional to 143,666.52, 215,500.18 and 143,458.92

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Solution

The fourth proportional to 143,666.52, 215,500.18 and 143,458.92 is: 215,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,666.52 : 215,500.18 = 143,458.92 : x
  2. Step 2: Convert to fraction form
    143,666.52/215,500.18 = 143,458.92/x
  3. Step 3: Cross multiply
    143,666.52x = 215,500.18 × 143,458.92
  4. Step 4: Simplify right side
    143,666.52x = 30,915,423,082.61
  5. Step 5: Solve for x
    x = 30,915,423,082.61/143,666.52
  6. Step 6: Final answer
    x = 215,188.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.