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Finding the Fourth Proportional to 178.56, 244.68 and 171.84

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Solution

The fourth proportional to 178.56, 244.68 and 171.84 is: 235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.56 : 244.68 = 171.84 : x
  2. Step 2: Convert to fraction form
    178.56/244.68 = 171.84/x
  3. Step 3: Cross multiply
    178.56x = 244.68 × 171.84
  4. Step 4: Simplify right side
    178.56x = 42,045.81
  5. Step 5: Solve for x
    x = 42,045.81/178.56
  6. Step 6: Final answer
    x = 235.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.