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Finding the Fourth Proportional to 195.24, 269.28 and 172.02

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Solution

The fourth proportional to 195.24, 269.28 and 172.02 is: 237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.24 : 269.28 = 172.02 : x
  2. Step 2: Convert to fraction form
    195.24/269.28 = 172.02/x
  3. Step 3: Cross multiply
    195.24x = 269.28 × 172.02
  4. Step 4: Simplify right side
    195.24x = 46,321.55
  5. Step 5: Solve for x
    x = 46,321.55/195.24
  6. Step 6: Final answer
    x = 237.25

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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.