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Finding the Fourth Proportional to 195.50, 292.74 and 165.12

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Solution

The fourth proportional to 195.50, 292.74 and 165.12 is: 247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.50 : 292.74 = 165.12 : x
  2. Step 2: Convert to fraction form
    195.50/292.74 = 165.12/x
  3. Step 3: Cross multiply
    195.50x = 292.74 × 165.12
  4. Step 4: Simplify right side
    195.50x = 48,337.23
  5. Step 5: Solve for x
    x = 48,337.23/195.50
  6. Step 6: Final answer
    x = 247.25

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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.