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Finding the Third Proportional to 217,386 and 458,352

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Solution

The third proportional to 217,386 and 458,352 is: 966,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,386 : 458,352 = 458,352 : x
  2. Step 2: Convert to fraction form
    217,386/458,352 = 458,352/x
  3. Step 3: Cross multiply
    217,386x = 458,352 × 458,352
  4. Step 4: Simplify right side
    217,386x = 210,086,555,904
  5. Step 5: Solve for x
    x = 210,086,555,904/217,386
  6. Step 6: Final answer
    x = 966,421.74

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.