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Finding the Fourth Proportional to 252,276.55, 378,461.46 and 72,354.44

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Solution

The fourth proportional to 252,276.55, 378,461.46 and 72,354.44 is: 108,545.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,276.55 : 378,461.46 = 72,354.44 : x
  2. Step 2: Convert to fraction form
    252,276.55/378,461.46 = 72,354.44/x
  3. Step 3: Cross multiply
    252,276.55x = 378,461.46 × 72,354.44
  4. Step 4: Simplify right side
    252,276.55x = 27,383,366,999.88
  5. Step 5: Solve for x
    x = 27,383,366,999.88/252,276.55
  6. Step 6: Final answer
    x = 108,545.04

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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.