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Finding the Fourth Proportional to 280,227.53, 386,711.92 and 159,368.65

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Solution

The fourth proportional to 280,227.53, 386,711.92 and 159,368.65 is: 219,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,227.53 : 386,711.92 = 159,368.65 : x
  2. Step 2: Convert to fraction form
    280,227.53/386,711.92 = 159,368.65/x
  3. Step 3: Cross multiply
    280,227.53x = 386,711.92 × 159,368.65
  4. Step 4: Simplify right side
    280,227.53x = 61,629,755,861.74
  5. Step 5: Solve for x
    x = 61,629,755,861.74/280,227.53
  6. Step 6: Final answer
    x = 219,927.55

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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.