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Finding the Fourth Proportional to 274,754.88, 379,157.27 and 153,895.86

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Solution

The fourth proportional to 274,754.88, 379,157.27 and 153,895.86 is: 212,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,754.88 : 379,157.27 = 153,895.86 : x
  2. Step 2: Convert to fraction form
    274,754.88/379,157.27 = 153,895.86/x
  3. Step 3: Cross multiply
    274,754.88x = 379,157.27 × 153,895.86
  4. Step 4: Simplify right side
    274,754.88x = 58,350,733,372.42
  5. Step 5: Solve for x
    x = 58,350,733,372.42/274,754.88
  6. Step 6: Final answer
    x = 212,373.78

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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.