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Finding the Fourth Proportional to 503,781.40, 755,672.10 and 188,221.60

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Solution

The fourth proportional to 503,781.40, 755,672.10 and 188,221.60 is: 282,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,781.40 : 755,672.10 = 188,221.60 : x
  2. Step 2: Convert to fraction form
    503,781.40/755,672.10 = 188,221.60/x
  3. Step 3: Cross multiply
    503,781.40x = 755,672.10 × 188,221.60
  4. Step 4: Simplify right side
    503,781.40x = 142,233,811,737.36
  5. Step 5: Solve for x
    x = 142,233,811,737.36/503,781.40
  6. Step 6: Final answer
    x = 282,332.40

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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.