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Finding the Fourth Proportional to 249.96, 373.32 and 217.56

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Solution

The fourth proportional to 249.96, 373.32 and 217.56 is: 324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.96 : 373.32 = 217.56 : x
  2. Step 2: Convert to fraction form
    249.96/373.32 = 217.56/x
  3. Step 3: Cross multiply
    249.96x = 373.32 × 217.56
  4. Step 4: Simplify right side
    249.96x = 81,219.50
  5. Step 5: Solve for x
    x = 81,219.50/249.96
  6. Step 6: Final answer
    x = 324.93

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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.