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Finding the Fourth Proportional to 254,865.53, 382,059.54 and 86,267.88

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Solution

The fourth proportional to 254,865.53, 382,059.54 and 86,267.88 is: 129,321.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,865.53 : 382,059.54 = 86,267.88 : x
  2. Step 2: Convert to fraction form
    254,865.53/382,059.54 = 86,267.88/x
  3. Step 3: Cross multiply
    254,865.53x = 382,059.54 × 86,267.88
  4. Step 4: Simplify right side
    254,865.53x = 32,959,466,549.58
  5. Step 5: Solve for x
    x = 32,959,466,549.58/254,865.53
  6. Step 6: Final answer
    x = 129,321.00

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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.