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Finding the Fourth Proportional to 503,648.59, 755,502.50 and 143,791.78

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Solution

The fourth proportional to 503,648.59, 755,502.50 and 143,791.78 is: 215,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,648.59 : 755,502.50 = 143,791.78 : x
  2. Step 2: Convert to fraction form
    503,648.59/755,502.50 = 143,791.78/x
  3. Step 3: Cross multiply
    503,648.59x = 755,502.50 × 143,791.78
  4. Step 4: Simplify right side
    503,648.59x = 108,635,049,269.45
  5. Step 5: Solve for x
    x = 108,635,049,269.45/503,648.59
  6. Step 6: Final answer
    x = 215,696.13

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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.