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Finding the Fourth Proportional to 447,484.91, 671,084.60 and 147,909.65

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Solution

The fourth proportional to 447,484.91, 671,084.60 and 147,909.65 is: 221,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,484.91 : 671,084.60 = 147,909.65 : x
  2. Step 2: Convert to fraction form
    447,484.91/671,084.60 = 147,909.65/x
  3. Step 3: Cross multiply
    447,484.91x = 671,084.60 × 147,909.65
  4. Step 4: Simplify right side
    447,484.91x = 99,259,884,211.42
  5. Step 5: Solve for x
    x = 99,259,884,211.42/447,484.91
  6. Step 6: Final answer
    x = 221,817.28

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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.