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Finding the Fourth Proportional to 250,325.71, 375,363.82 and 81,824.11

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Solution

The fourth proportional to 250,325.71, 375,363.82 and 81,824.11 is: 122,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,325.71 : 375,363.82 = 81,824.11 : x
  2. Step 2: Convert to fraction form
    250,325.71/375,363.82 = 81,824.11/x
  3. Step 3: Cross multiply
    250,325.71x = 375,363.82 × 81,824.11
  4. Step 4: Simplify right side
    250,325.71x = 30,713,809,354.73
  5. Step 5: Solve for x
    x = 30,713,809,354.73/250,325.71
  6. Step 6: Final answer
    x = 122,695.39

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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.