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Finding the Fourth Proportional to 503,434.27, 755,068.80 and 138,610.77

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Solution

The fourth proportional to 503,434.27, 755,068.80 and 138,610.77 is: 207,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,434.27 : 755,068.80 = 138,610.77 : x
  2. Step 2: Convert to fraction form
    503,434.27/755,068.80 = 138,610.77/x
  3. Step 3: Cross multiply
    503,434.27x = 755,068.80 × 138,610.77
  4. Step 4: Simplify right side
    503,434.27x = 104,660,669,706.52
  5. Step 5: Solve for x
    x = 104,660,669,706.52/503,434.27
  6. Step 6: Final answer
    x = 207,893.42

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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.