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Finding the Fourth Proportional to 349.19, 523.73 and 132.72

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Solution

The fourth proportional to 349.19, 523.73 and 132.72 is: 199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.19 : 523.73 = 132.72 : x
  2. Step 2: Convert to fraction form
    349.19/523.73 = 132.72/x
  3. Step 3: Cross multiply
    349.19x = 523.73 × 132.72
  4. Step 4: Simplify right side
    349.19x = 69,509.45
  5. Step 5: Solve for x
    x = 69,509.45/349.19
  6. Step 6: Final answer
    x = 199.06

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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.