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Finding the Fourth Proportional to 195.61, 293.45 and 98.12

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Solution

The fourth proportional to 195.61, 293.45 and 98.12 is: 147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.61 : 293.45 = 98.12 : x
  2. Step 2: Convert to fraction form
    195.61/293.45 = 98.12/x
  3. Step 3: Cross multiply
    195.61x = 293.45 × 98.12
  4. Step 4: Simplify right side
    195.61x = 28,793.31
  5. Step 5: Solve for x
    x = 28,793.31/195.61
  6. Step 6: Final answer
    x = 147.20

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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.