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Finding the Fourth Proportional to 510,179.40, 765,350.10 and 173,251.80

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Solution

The fourth proportional to 510,179.40, 765,350.10 and 173,251.80 is: 259,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,179.40 : 765,350.10 = 173,251.80 : x
  2. Step 2: Convert to fraction form
    510,179.40/765,350.10 = 173,251.80/x
  3. Step 3: Cross multiply
    510,179.40x = 765,350.10 × 173,251.80
  4. Step 4: Simplify right side
    510,179.40x = 132,598,282,455.18
  5. Step 5: Solve for x
    x = 132,598,282,455.18/510,179.40
  6. Step 6: Final answer
    x = 259,905.21

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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.