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Finding the Fourth Proportional to 503,310.72, 754,732.80 and 187,682.88

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Solution

The fourth proportional to 503,310.72, 754,732.80 and 187,682.88 is: 281,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,310.72 : 754,732.80 = 187,682.88 : x
  2. Step 2: Convert to fraction form
    503,310.72/754,732.80 = 187,682.88/x
  3. Step 3: Cross multiply
    503,310.72x = 754,732.80 × 187,682.88
  4. Step 4: Simplify right side
    503,310.72x = 141,650,425,534.46
  5. Step 5: Solve for x
    x = 141,650,425,534.46/503,310.72
  6. Step 6: Final answer
    x = 281,437.33

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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.