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Finding the Fourth Proportional to 254,239.56, 381,318.84 and 67,265.64

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Solution

The fourth proportional to 254,239.56, 381,318.84 and 67,265.64 is: 100,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,239.56 : 381,318.84 = 67,265.64 : x
  2. Step 2: Convert to fraction form
    254,239.56/381,318.84 = 67,265.64/x
  3. Step 3: Cross multiply
    254,239.56x = 381,318.84 × 67,265.64
  4. Step 4: Simplify right side
    254,239.56x = 25,649,655,816.66
  5. Step 5: Solve for x
    x = 25,649,655,816.66/254,239.56
  6. Step 6: Final answer
    x = 100,887.74

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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.