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Finding the Fourth Proportional to 246.29, 369.21 and 99.97

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Solution

The fourth proportional to 246.29, 369.21 and 99.97 is: 149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.29 : 369.21 = 99.97 : x
  2. Step 2: Convert to fraction form
    246.29/369.21 = 99.97/x
  3. Step 3: Cross multiply
    246.29x = 369.21 × 99.97
  4. Step 4: Simplify right side
    246.29x = 36,909.38
  5. Step 5: Solve for x
    x = 36,909.38/246.29
  6. Step 6: Final answer
    x = 149.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.