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Finding the Fourth Proportional to 252,082.88, 347,881.69 and 138,912.92

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Solution

The fourth proportional to 252,082.88, 347,881.69 and 138,912.92 is: 191,703.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,082.88 : 347,881.69 = 138,912.92 : x
  2. Step 2: Convert to fraction form
    252,082.88/347,881.69 = 138,912.92/x
  3. Step 3: Cross multiply
    252,082.88x = 347,881.69 × 138,912.92
  4. Step 4: Simplify right side
    252,082.88x = 48,325,261,372.43
  5. Step 5: Solve for x
    x = 48,325,261,372.43/252,082.88
  6. Step 6: Final answer
    x = 191,703.86

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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.