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Finding the Fourth Proportional to 329.52, 494.40 and 101.52

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Solution

The fourth proportional to 329.52, 494.40 and 101.52 is: 152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.52 : 494.40 = 101.52 : x
  2. Step 2: Convert to fraction form
    329.52/494.40 = 101.52/x
  3. Step 3: Cross multiply
    329.52x = 494.40 × 101.52
  4. Step 4: Simplify right side
    329.52x = 50,191.49
  5. Step 5: Solve for x
    x = 50,191.49/329.52
  6. Step 6: Final answer
    x = 152.32

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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.