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Finding the Fourth Proportional to 280,773.72, 387,351.68 and 204,124.76

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Solution

The fourth proportional to 280,773.72, 387,351.68 and 204,124.76 is: 281,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,773.72 : 387,351.68 = 204,124.76 : x
  2. Step 2: Convert to fraction form
    280,773.72/387,351.68 = 204,124.76/x
  3. Step 3: Cross multiply
    280,773.72x = 387,351.68 × 204,124.76
  4. Step 4: Simplify right side
    280,773.72x = 79,068,068,715.60
  5. Step 5: Solve for x
    x = 79,068,068,715.60/280,773.72
  6. Step 6: Final answer
    x = 281,607.80

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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.