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Finding the Fourth Proportional to 243.45, 363.24 and 237.92

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Solution

The fourth proportional to 243.45, 363.24 and 237.92 is: 354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.45 : 363.24 = 237.92 : x
  2. Step 2: Convert to fraction form
    243.45/363.24 = 237.92/x
  3. Step 3: Cross multiply
    243.45x = 363.24 × 237.92
  4. Step 4: Simplify right side
    243.45x = 86,420.24
  5. Step 5: Solve for x
    x = 86,420.24/243.45
  6. Step 6: Final answer
    x = 354.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.