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Finding the Fourth Proportional to 362.99, 500.92 and 197.20

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Solution

The fourth proportional to 362.99, 500.92 and 197.20 is: 272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.99 : 500.92 = 197.20 : x
  2. Step 2: Convert to fraction form
    362.99/500.92 = 197.20/x
  3. Step 3: Cross multiply
    362.99x = 500.92 × 197.20
  4. Step 4: Simplify right side
    362.99x = 98,781.42
  5. Step 5: Solve for x
    x = 98,781.42/362.99
  6. Step 6: Final answer
    x = 272.13

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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.