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Finding the Fourth Proportional to 503,306.22, 754,726.05 and 187,678.38

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Solution

The fourth proportional to 503,306.22, 754,726.05 and 187,678.38 is: 281,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,306.22 : 754,726.05 = 187,678.38 : x
  2. Step 2: Convert to fraction form
    503,306.22/754,726.05 = 187,678.38/x
  3. Step 3: Cross multiply
    503,306.22x = 754,726.05 × 187,678.38
  4. Step 4: Simplify right side
    503,306.22x = 141,645,762,407.80
  5. Step 5: Solve for x
    x = 141,645,762,407.80/503,306.22
  6. Step 6: Final answer
    x = 281,430.58

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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.