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Finding the Fourth Proportional to 178.52, 269.45 and 178.52

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Solution

The fourth proportional to 178.52, 269.45 and 178.52 is: 269.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.52 : 269.45 = 178.52 : x
  2. Step 2: Convert to fraction form
    178.52/269.45 = 178.52/x
  3. Step 3: Cross multiply
    178.52x = 269.45 × 178.52
  4. Step 4: Simplify right side
    178.52x = 48,102.21
  5. Step 5: Solve for x
    x = 48,102.21/178.52
  6. Step 6: Final answer
    x = 269.45

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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.