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Finding the Fourth Proportional to 250,253.80, 375,401.49 and 81,770.56

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Solution

The fourth proportional to 250,253.80, 375,401.49 and 81,770.56 is: 122,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,253.80 : 375,401.49 = 81,770.56 : x
  2. Step 2: Convert to fraction form
    250,253.80/375,401.49 = 81,770.56/x
  3. Step 3: Cross multiply
    250,253.80x = 375,401.49 × 81,770.56
  4. Step 4: Simplify right side
    250,253.80x = 30,696,790,062.13
  5. Step 5: Solve for x
    x = 30,696,790,062.13/250,253.80
  6. Step 6: Final answer
    x = 122,662.63

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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.