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Finding the Fourth Proportional to 247.43, 373.96 and 243.18

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Solution

The fourth proportional to 247.43, 373.96 and 243.18 is: 367.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.43 : 373.96 = 243.18 : x
  2. Step 2: Convert to fraction form
    247.43/373.96 = 243.18/x
  3. Step 3: Cross multiply
    247.43x = 373.96 × 243.18
  4. Step 4: Simplify right side
    247.43x = 90,938.38
  5. Step 5: Solve for x
    x = 90,938.38/247.43
  6. Step 6: Final answer
    x = 367.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.