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Finding the Fourth Proportional to 178.19, 246.00 and 136.61

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Solution

The fourth proportional to 178.19, 246.00 and 136.61 is: 188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.19 : 246.00 = 136.61 : x
  2. Step 2: Convert to fraction form
    178.19/246.00 = 136.61/x
  3. Step 3: Cross multiply
    178.19x = 246.00 × 136.61
  4. Step 4: Simplify right side
    178.19x = 33,605.24
  5. Step 5: Solve for x
    x = 33,605.24/178.19
  6. Step 6: Final answer
    x = 188.59

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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.