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Finding the Fourth Proportional to 343,694.25, 515,918.52 and 273,070.85

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Solution

The fourth proportional to 343,694.25, 515,918.52 and 273,070.85 is: 409,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,694.25 : 515,918.52 = 273,070.85 : x
  2. Step 2: Convert to fraction form
    343,694.25/515,918.52 = 273,070.85/x
  3. Step 3: Cross multiply
    343,694.25x = 515,918.52 × 273,070.85
  4. Step 4: Simplify right side
    343,694.25x = 140,882,306,207.55
  5. Step 5: Solve for x
    x = 140,882,306,207.55/343,694.25
  6. Step 6: Final answer
    x = 409,905.92

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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.