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Finding the Fourth Proportional to 275,264.28, 379,892.70 and 162,123.48

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Solution

The fourth proportional to 275,264.28, 379,892.70 and 162,123.48 is: 223,746.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,264.28 : 379,892.70 = 162,123.48 : x
  2. Step 2: Convert to fraction form
    275,264.28/379,892.70 = 162,123.48/x
  3. Step 3: Cross multiply
    275,264.28x = 379,892.70 × 162,123.48
  4. Step 4: Simplify right side
    275,264.28x = 61,589,526,550.60
  5. Step 5: Solve for x
    x = 61,589,526,550.60/275,264.28
  6. Step 6: Final answer
    x = 223,746.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.