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Finding the Fourth Proportional to 172.67, 237.68 and 150.80

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Solution

The fourth proportional to 172.67, 237.68 and 150.80 is: 207.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172.67 : 237.68 = 150.80 : x
  2. Step 2: Convert to fraction form
    172.67/237.68 = 150.80/x
  3. Step 3: Cross multiply
    172.67x = 237.68 × 150.80
  4. Step 4: Simplify right side
    172.67x = 35,842.14
  5. Step 5: Solve for x
    x = 35,842.14/172.67
  6. Step 6: Final answer
    x = 207.58

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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.