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Finding the Fourth Proportional to 98.79, 148.29 and 62.27

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Solution

The fourth proportional to 98.79, 148.29 and 62.27 is: 93.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.79 : 148.29 = 62.27 : x
  2. Step 2: Convert to fraction form
    98.79/148.29 = 62.27/x
  3. Step 3: Cross multiply
    98.79x = 148.29 × 62.27
  4. Step 4: Simplify right side
    98.79x = 9,234.02
  5. Step 5: Solve for x
    x = 9,234.02/98.79
  6. Step 6: Final answer
    x = 93.47

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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.