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Finding the Fourth Proportional to 195.61, 293.96 and 99.49

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Solution

The fourth proportional to 195.61, 293.96 and 99.49 is: 149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.61 : 293.96 = 99.49 : x
  2. Step 2: Convert to fraction form
    195.61/293.96 = 99.49/x
  3. Step 3: Cross multiply
    195.61x = 293.96 × 99.49
  4. Step 4: Simplify right side
    195.61x = 29,246.08
  5. Step 5: Solve for x
    x = 29,246.08/195.61
  6. Step 6: Final answer
    x = 149.51

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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.