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Finding the Third Proportional to 103,040 and 217,340

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Solution

The third proportional to 103,040 and 217,340 is: 458,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,040 : 217,340 = 217,340 : x
  2. Step 2: Convert to fraction form
    103,040/217,340 = 217,340/x
  3. Step 3: Cross multiply
    103,040x = 217,340 × 217,340
  4. Step 4: Simplify right side
    103,040x = 47,236,675,600
  5. Step 5: Solve for x
    x = 47,236,675,600/103,040
  6. Step 6: Final answer
    x = 458,430.47

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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.