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Finding the Fourth Proportional to 224.69, 310.08 and 131.46

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Solution

The fourth proportional to 224.69, 310.08 and 131.46 is: 181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.69 : 310.08 = 131.46 : x
  2. Step 2: Convert to fraction form
    224.69/310.08 = 131.46/x
  3. Step 3: Cross multiply
    224.69x = 310.08 × 131.46
  4. Step 4: Simplify right side
    224.69x = 40,763.12
  5. Step 5: Solve for x
    x = 40,763.12/224.69
  6. Step 6: Final answer
    x = 181.42

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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.