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Finding the Third Proportional to 175.19 and 358.38

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Solution

The third proportional to 175.19 and 358.38 is: 733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.19 : 358.38 = 358.38 : x
  2. Step 2: Convert to fraction form
    175.19/358.38 = 358.38/x
  3. Step 3: Cross multiply
    175.19x = 358.38 × 358.38
  4. Step 4: Simplify right side
    175.19x = 128,432.64
  5. Step 5: Solve for x
    x = 128,432.64/175.19
  6. Step 6: Final answer
    x = 733.12

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.