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Finding the Third Proportional to 212,635.13 and 342,604.69

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Solution

The third proportional to 212,635.13 and 342,604.69 is: 552,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,635.13 : 342,604.69 = 342,604.69 : x
  2. Step 2: Convert to fraction form
    212,635.13/342,604.69 = 342,604.69/x
  3. Step 3: Cross multiply
    212,635.13x = 342,604.69 × 342,604.69
  4. Step 4: Simplify right side
    212,635.13x = 117,377,971,896.97
  5. Step 5: Solve for x
    x = 117,377,971,896.97/212,635.13
  6. Step 6: Final answer
    x = 552,015.91

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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.