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Finding the Third Proportional to 224.02 and 489.80

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Solution

The third proportional to 224.02 and 489.80 is: 1,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.02 : 489.80 = 489.80 : x
  2. Step 2: Convert to fraction form
    224.02/489.80 = 489.80/x
  3. Step 3: Cross multiply
    224.02x = 489.80 × 489.80
  4. Step 4: Simplify right side
    224.02x = 239,900.98
  5. Step 5: Solve for x
    x = 239,900.98/224.02
  6. Step 6: Final answer
    x = 1,070.91

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.