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Finding the Fourth Proportional to 182.80, 252.34 and 117.46

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Solution

The fourth proportional to 182.80, 252.34 and 117.46 is: 162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.80 : 252.34 = 117.46 : x
  2. Step 2: Convert to fraction form
    182.80/252.34 = 117.46/x
  3. Step 3: Cross multiply
    182.80x = 252.34 × 117.46
  4. Step 4: Simplify right side
    182.80x = 29,638.93
  5. Step 5: Solve for x
    x = 29,638.93/182.80
  6. Step 6: Final answer
    x = 162.14

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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.