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Finding the Fourth Proportional to 499,496.04, 749,046.02 and 215,207.91

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Solution

The fourth proportional to 499,496.04, 749,046.02 and 215,207.91 is: 322,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,496.04 : 749,046.02 = 215,207.91 : x
  2. Step 2: Convert to fraction form
    499,496.04/749,046.02 = 215,207.91/x
  3. Step 3: Cross multiply
    499,496.04x = 749,046.02 × 215,207.91
  4. Step 4: Simplify right side
    499,496.04x = 161,200,627,381.98
  5. Step 5: Solve for x
    x = 161,200,627,381.98/499,496.04
  6. Step 6: Final answer
    x = 322,726.54

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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.