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Finding the Third Proportional to 400.94 and 538.88

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Solution

The third proportional to 400.94 and 538.88 is: 724.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.94 : 538.88 = 538.88 : x
  2. Step 2: Convert to fraction form
    400.94/538.88 = 538.88/x
  3. Step 3: Cross multiply
    400.94x = 538.88 × 538.88
  4. Step 4: Simplify right side
    400.94x = 290,386.27
  5. Step 5: Solve for x
    x = 290,386.27/400.94
  6. Step 6: Final answer
    x = 724.27

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.