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Finding the Fourth Proportional to 224.87, 310.30 and 165.89

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Solution

The fourth proportional to 224.87, 310.30 and 165.89 is: 228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.87 : 310.30 = 165.89 : x
  2. Step 2: Convert to fraction form
    224.87/310.30 = 165.89/x
  3. Step 3: Cross multiply
    224.87x = 310.30 × 165.89
  4. Step 4: Simplify right side
    224.87x = 51,474.61
  5. Step 5: Solve for x
    x = 51,474.61/224.87
  6. Step 6: Final answer
    x = 228.91

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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.