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Finding the Third Proportional to 214,759.13 and 315,564.56

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Solution

The third proportional to 214,759.13 and 315,564.56 is: 463,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,759.13 : 315,564.56 = 315,564.56 : x
  2. Step 2: Convert to fraction form
    214,759.13/315,564.56 = 315,564.56/x
  3. Step 3: Cross multiply
    214,759.13x = 315,564.56 × 315,564.56
  4. Step 4: Simplify right side
    214,759.13x = 99,580,993,105.82
  5. Step 5: Solve for x
    x = 99,580,993,105.82/214,759.13
  6. Step 6: Final answer
    x = 463,686.90

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.