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Finding the Fourth Proportional to 345,807.92, 518,711.88 and 267,037.04

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Solution

The fourth proportional to 345,807.92, 518,711.88 and 267,037.04 is: 400,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,807.92 : 518,711.88 = 267,037.04 : x
  2. Step 2: Convert to fraction form
    345,807.92/518,711.88 = 267,037.04/x
  3. Step 3: Cross multiply
    345,807.92x = 518,711.88 × 267,037.04
  4. Step 4: Simplify right side
    345,807.92x = 138,515,285,048.04
  5. Step 5: Solve for x
    x = 138,515,285,048.04/345,807.92
  6. Step 6: Final answer
    x = 400,555.56

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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.