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Finding the Fourth Proportional to 279,251.30, 385,350.49 and 156,732.29

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Solution

The fourth proportional to 279,251.30, 385,350.49 and 156,732.29 is: 216,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,251.30 : 385,350.49 = 156,732.29 : x
  2. Step 2: Convert to fraction form
    279,251.30/385,350.49 = 156,732.29/x
  3. Step 3: Cross multiply
    279,251.30x = 385,350.49 × 156,732.29
  4. Step 4: Simplify right side
    279,251.30x = 60,396,864,464.55
  5. Step 5: Solve for x
    x = 60,396,864,464.55/279,251.30
  6. Step 6: Final answer
    x = 216,281.41

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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.