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Finding the Third Proportional to 291.52 and 675.42

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Solution

The third proportional to 291.52 and 675.42 is: 1,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.52 : 675.42 = 675.42 : x
  2. Step 2: Convert to fraction form
    291.52/675.42 = 675.42/x
  3. Step 3: Cross multiply
    291.52x = 675.42 × 675.42
  4. Step 4: Simplify right side
    291.52x = 456,194.71
  5. Step 5: Solve for x
    x = 456,194.71/291.52
  6. Step 6: Final answer
    x = 1,564.91

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.