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Finding the Fourth Proportional to 178.22, 265.64 and 167.70

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Solution

The fourth proportional to 178.22, 265.64 and 167.70 is: 249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.22 : 265.64 = 167.70 : x
  2. Step 2: Convert to fraction form
    178.22/265.64 = 167.70/x
  3. Step 3: Cross multiply
    178.22x = 265.64 × 167.70
  4. Step 4: Simplify right side
    178.22x = 44,547.83
  5. Step 5: Solve for x
    x = 44,547.83/178.22
  6. Step 6: Final answer
    x = 249.96

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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.