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Finding the Third Proportional to 223.13 and 358.69

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Solution

The third proportional to 223.13 and 358.69 is: 576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.13 : 358.69 = 358.69 : x
  2. Step 2: Convert to fraction form
    223.13/358.69 = 358.69/x
  3. Step 3: Cross multiply
    223.13x = 358.69 × 358.69
  4. Step 4: Simplify right side
    223.13x = 128,656.72
  5. Step 5: Solve for x
    x = 128,656.72/223.13
  6. Step 6: Final answer
    x = 576.61

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.