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Finding the Fourth Proportional to 447,248.76, 670,876.68 and 163,142.88

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Solution

The fourth proportional to 447,248.76, 670,876.68 and 163,142.88 is: 244,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,248.76 : 670,876.68 = 163,142.88 : x
  2. Step 2: Convert to fraction form
    447,248.76/670,876.68 = 163,142.88/x
  3. Step 3: Cross multiply
    447,248.76x = 670,876.68 × 163,142.88
  4. Step 4: Simplify right side
    447,248.76x = 109,448,753,700.04
  5. Step 5: Solve for x
    x = 109,448,753,700.04/447,248.76
  6. Step 6: Final answer
    x = 244,715.61

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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.