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Finding the Fourth Proportional to 362.88, 500.80 and 215.48

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Solution

The fourth proportional to 362.88, 500.80 and 215.48 is: 297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.88 : 500.80 = 215.48 : x
  2. Step 2: Convert to fraction form
    362.88/500.80 = 215.48/x
  3. Step 3: Cross multiply
    362.88x = 500.80 × 215.48
  4. Step 4: Simplify right side
    362.88x = 107,912.38
  5. Step 5: Solve for x
    x = 107,912.38/362.88
  6. Step 6: Final answer
    x = 297.38

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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.