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Finding the Fourth Proportional to 98.29, 148.30 and 97.48

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Solution

The fourth proportional to 98.29, 148.30 and 97.48 is: 147.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.29 : 148.30 = 97.48 : x
  2. Step 2: Convert to fraction form
    98.29/148.30 = 97.48/x
  3. Step 3: Cross multiply
    98.29x = 148.30 × 97.48
  4. Step 4: Simplify right side
    98.29x = 14,456.28
  5. Step 5: Solve for x
    x = 14,456.28/98.29
  6. Step 6: Final answer
    x = 147.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.