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Finding the Fourth Proportional to 343,439.70, 515,151.45 and 94,121.70

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Solution

The fourth proportional to 343,439.70, 515,151.45 and 94,121.70 is: 141,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,439.70 : 515,151.45 = 94,121.70 : x
  2. Step 2: Convert to fraction form
    343,439.70/515,151.45 = 94,121.70/x
  3. Step 3: Cross multiply
    343,439.70x = 515,151.45 × 94,121.70
  4. Step 4: Simplify right side
    343,439.70x = 48,486,930,231.47
  5. Step 5: Solve for x
    x = 48,486,930,231.47/343,439.70
  6. Step 6: Final answer
    x = 141,180.33

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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.