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Finding the Fourth Proportional to 322.38, 444.66 and 224.13

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Solution

The fourth proportional to 322.38, 444.66 and 224.13 is: 309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.38 : 444.66 = 224.13 : x
  2. Step 2: Convert to fraction form
    322.38/444.66 = 224.13/x
  3. Step 3: Cross multiply
    322.38x = 444.66 × 224.13
  4. Step 4: Simplify right side
    322.38x = 99,661.65
  5. Step 5: Solve for x
    x = 99,661.65/322.38
  6. Step 6: Final answer
    x = 309.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.