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Finding the Fourth Proportional to 252,732.37, 378,971.80 and 84,193.45

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Solution

The fourth proportional to 252,732.37, 378,971.80 and 84,193.45 is: 126,247.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,732.37 : 378,971.80 = 84,193.45 : x
  2. Step 2: Convert to fraction form
    252,732.37/378,971.80 = 84,193.45/x
  3. Step 3: Cross multiply
    252,732.37x = 378,971.80 × 84,193.45
  4. Step 4: Simplify right side
    252,732.37x = 31,906,943,294.71
  5. Step 5: Solve for x
    x = 31,906,943,294.71/252,732.37
  6. Step 6: Final answer
    x = 126,247.95

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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.