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Finding the Fourth Proportional to 397,757.76, 548,781.96 and 225,647.28

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Solution

The fourth proportional to 397,757.76, 548,781.96 and 225,647.28 is: 311,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,757.76 : 548,781.96 = 225,647.28 : x
  2. Step 2: Convert to fraction form
    397,757.76/548,781.96 = 225,647.28/x
  3. Step 3: Cross multiply
    397,757.76x = 548,781.96 × 225,647.28
  4. Step 4: Simplify right side
    397,757.76x = 123,831,156,587.07
  5. Step 5: Solve for x
    x = 123,831,156,587.07/397,757.76
  6. Step 6: Final answer
    x = 311,323.04

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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.