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Finding the Fourth Proportional to 343,352.60, 515,028.90 and 329,355.80

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Solution

The fourth proportional to 343,352.60, 515,028.90 and 329,355.80 is: 494,033.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,352.60 : 515,028.90 = 329,355.80 : x
  2. Step 2: Convert to fraction form
    343,352.60/515,028.90 = 329,355.80/x
  3. Step 3: Cross multiply
    343,352.60x = 515,028.90 × 329,355.80
  4. Step 4: Simplify right side
    343,352.60x = 169,627,755,382.62
  5. Step 5: Solve for x
    x = 169,627,755,382.62/343,352.60
  6. Step 6: Final answer
    x = 494,033.70

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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.