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Finding the Fourth Proportional to 310.96, 466.39 and 118.59

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Solution

The fourth proportional to 310.96, 466.39 and 118.59 is: 177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.96 : 466.39 = 118.59 : x
  2. Step 2: Convert to fraction form
    310.96/466.39 = 118.59/x
  3. Step 3: Cross multiply
    310.96x = 466.39 × 118.59
  4. Step 4: Simplify right side
    310.96x = 55,309.19
  5. Step 5: Solve for x
    x = 55,309.19/310.96
  6. Step 6: Final answer
    x = 177.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.