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Finding the Fourth Proportional to 410.92, 615.25 and 342.23

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Solution

The fourth proportional to 410.92, 615.25 and 342.23 is: 512.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.92 : 615.25 = 342.23 : x
  2. Step 2: Convert to fraction form
    410.92/615.25 = 342.23/x
  3. Step 3: Cross multiply
    410.92x = 615.25 × 342.23
  4. Step 4: Simplify right side
    410.92x = 210,552.43
  5. Step 5: Solve for x
    x = 210,552.43/410.92
  6. Step 6: Final answer
    x = 512.39

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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.