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Finding the Fourth Proportional to 225.46, 310.90 and 176.32

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Solution

The fourth proportional to 225.46, 310.90 and 176.32 is: 243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.46 : 310.90 = 176.32 : x
  2. Step 2: Convert to fraction form
    225.46/310.90 = 176.32/x
  3. Step 3: Cross multiply
    225.46x = 310.90 × 176.32
  4. Step 4: Simplify right side
    225.46x = 54,817.89
  5. Step 5: Solve for x
    x = 54,817.89/225.46
  6. Step 6: Final answer
    x = 243.14

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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.