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Finding the Fourth Proportional to 346.24, 517.72 and 329.52

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Solution

The fourth proportional to 346.24, 517.72 and 329.52 is: 492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.24 : 517.72 = 329.52 : x
  2. Step 2: Convert to fraction form
    346.24/517.72 = 329.52/x
  3. Step 3: Cross multiply
    346.24x = 517.72 × 329.52
  4. Step 4: Simplify right side
    346.24x = 170,599.09
  5. Step 5: Solve for x
    x = 170,599.09/346.24
  6. Step 6: Final answer
    x = 492.72

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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.