Home / 254,261.56-381,395.10-76,770.04

Finding the Fourth Proportional to 254,261.56, 381,395.10 and 76,770.04

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Solution

The fourth proportional to 254,261.56, 381,395.10 and 76,770.04 is: 115,155.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,261.56 : 381,395.10 = 76,770.04 : x
  2. Step 2: Convert to fraction form
    254,261.56/381,395.10 = 76,770.04/x
  3. Step 3: Cross multiply
    254,261.56x = 381,395.10 × 76,770.04
  4. Step 4: Simplify right side
    254,261.56x = 29,279,717,082.80
  5. Step 5: Solve for x
    x = 29,279,717,082.80/254,261.56
  6. Step 6: Final answer
    x = 115,155.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.