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Finding the Fourth Proportional to 180.24, 271.41 and 157.68

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Solution

The fourth proportional to 180.24, 271.41 and 157.68 is: 237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.24 : 271.41 = 157.68 : x
  2. Step 2: Convert to fraction form
    180.24/271.41 = 157.68/x
  3. Step 3: Cross multiply
    180.24x = 271.41 × 157.68
  4. Step 4: Simplify right side
    180.24x = 42,795.93
  5. Step 5: Solve for x
    x = 42,795.93/180.24
  6. Step 6: Final answer
    x = 237.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.