Home / 280,691.52-421,134.48-175,385.04

Finding the Fourth Proportional to 280,691.52, 421,134.48 and 175,385.04

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Solution

The fourth proportional to 280,691.52, 421,134.48 and 175,385.04 is: 263,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,691.52 : 421,134.48 = 175,385.04 : x
  2. Step 2: Convert to fraction form
    280,691.52/421,134.48 = 175,385.04/x
  3. Step 3: Cross multiply
    280,691.52x = 421,134.48 × 175,385.04
  4. Step 4: Simplify right side
    280,691.52x = 73,860,687,620.18
  5. Step 5: Solve for x
    x = 73,860,687,620.18/280,691.52
  6. Step 6: Final answer
    x = 263,138.29

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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.