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Finding the Fourth Proportional to 363,610.56, 545,453.16 and 139,159.80

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Solution

The fourth proportional to 363,610.56, 545,453.16 and 139,159.80 is: 208,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,610.56 : 545,453.16 = 139,159.80 : x
  2. Step 2: Convert to fraction form
    363,610.56/545,453.16 = 139,159.80/x
  3. Step 3: Cross multiply
    363,610.56x = 545,453.16 × 139,159.80
  4. Step 4: Simplify right side
    363,610.56x = 75,905,152,654.97
  5. Step 5: Solve for x
    x = 75,905,152,654.97/363,610.56
  6. Step 6: Final answer
    x = 208,753.98

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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.