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Finding the Fourth Proportional to 205,337.25, 308,128.76 and 88,601.25

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Solution

The fourth proportional to 205,337.25, 308,128.76 and 88,601.25 is: 132,954.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,337.25 : 308,128.76 = 88,601.25 : x
  2. Step 2: Convert to fraction form
    205,337.25/308,128.76 = 88,601.25/x
  3. Step 3: Cross multiply
    205,337.25x = 308,128.76 × 88,601.25
  4. Step 4: Simplify right side
    205,337.25x = 27,300,593,296.95
  5. Step 5: Solve for x
    x = 27,300,593,296.95/205,337.25
  6. Step 6: Final answer
    x = 132,954.90

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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.