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Finding the Fourth Proportional to 179.43, 247.85 and 148.47

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Solution

The fourth proportional to 179.43, 247.85 and 148.47 is: 205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.43 : 247.85 = 148.47 : x
  2. Step 2: Convert to fraction form
    179.43/247.85 = 148.47/x
  3. Step 3: Cross multiply
    179.43x = 247.85 × 148.47
  4. Step 4: Simplify right side
    179.43x = 36,797.55
  5. Step 5: Solve for x
    x = 36,797.55/179.43
  6. Step 6: Final answer
    x = 205.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.