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Finding the Fourth Proportional to 250,044.39, 375,078.67 and 81,564.39

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Solution

The fourth proportional to 250,044.39, 375,078.67 and 81,564.39 is: 122,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,044.39 : 375,078.67 = 81,564.39 : x
  2. Step 2: Convert to fraction form
    250,044.39/375,078.67 = 81,564.39/x
  3. Step 3: Cross multiply
    250,044.39x = 375,078.67 × 81,564.39
  4. Step 4: Simplify right side
    250,044.39x = 30,593,062,716.65
  5. Step 5: Solve for x
    x = 30,593,062,716.65/250,044.39
  6. Step 6: Final answer
    x = 122,350.53

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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.