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Finding the Fourth Proportional to 362.32, 500.10 and 231.28

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Solution

The fourth proportional to 362.32, 500.10 and 231.28 is: 319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.32 : 500.10 = 231.28 : x
  2. Step 2: Convert to fraction form
    362.32/500.10 = 231.28/x
  3. Step 3: Cross multiply
    362.32x = 500.10 × 231.28
  4. Step 4: Simplify right side
    362.32x = 115,663.13
  5. Step 5: Solve for x
    x = 115,663.13/362.32
  6. Step 6: Final answer
    x = 319.23

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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.