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Finding the Fourth Proportional to 274,855.28, 379,314.29 and 158,525.49

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Solution

The fourth proportional to 274,855.28, 379,314.29 and 158,525.49 is: 218,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,855.28 : 379,314.29 = 158,525.49 : x
  2. Step 2: Convert to fraction form
    274,855.28/379,314.29 = 158,525.49/x
  3. Step 3: Cross multiply
    274,855.28x = 379,314.29 × 158,525.49
  4. Step 4: Simplify right side
    274,855.28x = 60,130,981,471.20
  5. Step 5: Solve for x
    x = 60,130,981,471.20/274,855.28
  6. Step 6: Final answer
    x = 218,773.25

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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.