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Finding the Fourth Proportional to 447,697.39, 671,318.02 and 220,008.19

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Solution

The fourth proportional to 447,697.39, 671,318.02 and 220,008.19 is: 329,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,697.39 : 671,318.02 = 220,008.19 : x
  2. Step 2: Convert to fraction form
    447,697.39/671,318.02 = 220,008.19/x
  3. Step 3: Cross multiply
    447,697.39x = 671,318.02 × 220,008.19
  4. Step 4: Simplify right side
    447,697.39x = 147,695,462,494.58
  5. Step 5: Solve for x
    x = 147,695,462,494.58/447,697.39
  6. Step 6: Final answer
    x = 329,900.21

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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.