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Finding the Third Proportional to 244.78 and 322.03

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Solution

The third proportional to 244.78 and 322.03 is: 423.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.78 : 322.03 = 322.03 : x
  2. Step 2: Convert to fraction form
    244.78/322.03 = 322.03/x
  3. Step 3: Cross multiply
    244.78x = 322.03 × 322.03
  4. Step 4: Simplify right side
    244.78x = 103,704.13
  5. Step 5: Solve for x
    x = 103,704.13/244.78
  6. Step 6: Final answer
    x = 423.66

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.