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Finding the Fourth Proportional to 250,435.17, 375,711.08 and 81,963.81

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Solution

The fourth proportional to 250,435.17, 375,711.08 and 81,963.81 is: 122,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,435.17 : 375,711.08 = 81,963.81 : x
  2. Step 2: Convert to fraction form
    250,435.17/375,711.08 = 81,963.81/x
  3. Step 3: Cross multiply
    250,435.17x = 375,711.08 × 81,963.81
  4. Step 4: Simplify right side
    250,435.17x = 30,794,711,166.20
  5. Step 5: Solve for x
    x = 30,794,711,166.20/250,435.17
  6. Step 6: Final answer
    x = 122,964.80

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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.