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Finding the Fourth Proportional to 172.48, 237.81 and 141.37

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Solution

The fourth proportional to 172.48, 237.81 and 141.37 is: 194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172.48 : 237.81 = 141.37 : x
  2. Step 2: Convert to fraction form
    172.48/237.81 = 141.37/x
  3. Step 3: Cross multiply
    172.48x = 237.81 × 141.37
  4. Step 4: Simplify right side
    172.48x = 33,619.20
  5. Step 5: Solve for x
    x = 33,619.20/172.48
  6. Step 6: Final answer
    x = 194.92

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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.