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Finding the Fourth Proportional to 486,221.54, 729,305.96 and 149,262.26

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Solution

The fourth proportional to 486,221.54, 729,305.96 and 149,262.26 is: 223,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,221.54 : 729,305.96 = 149,262.26 : x
  2. Step 2: Convert to fraction form
    486,221.54/729,305.96 = 149,262.26/x
  3. Step 3: Cross multiply
    486,221.54x = 729,305.96 × 149,262.26
  4. Step 4: Simplify right side
    486,221.54x = 108,857,855,074.76
  5. Step 5: Solve for x
    x = 108,857,855,074.76/486,221.54
  6. Step 6: Final answer
    x = 223,885.30

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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.