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Finding the Third Proportional to 266.91 and 575.16

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Solution

The third proportional to 266.91 and 575.16 is: 1,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.91 : 575.16 = 575.16 : x
  2. Step 2: Convert to fraction form
    266.91/575.16 = 575.16/x
  3. Step 3: Cross multiply
    266.91x = 575.16 × 575.16
  4. Step 4: Simplify right side
    266.91x = 330,804.71
  5. Step 5: Solve for x
    x = 330,804.71/266.91
  6. Step 6: Final answer
    x = 1,239.40

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.