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Finding the Fourth Proportional to 180.84, 269.34 and 171.48

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Solution

The fourth proportional to 180.84, 269.34 and 171.48 is: 255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.84 : 269.34 = 171.48 : x
  2. Step 2: Convert to fraction form
    180.84/269.34 = 171.48/x
  3. Step 3: Cross multiply
    180.84x = 269.34 × 171.48
  4. Step 4: Simplify right side
    180.84x = 46,186.42
  5. Step 5: Solve for x
    x = 46,186.42/180.84
  6. Step 6: Final answer
    x = 255.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.