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Finding the Third Proportional to 214,434.75 and 315,414.38

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Solution

The third proportional to 214,434.75 and 315,414.38 is: 463,946.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,434.75 : 315,414.38 = 315,414.38 : x
  2. Step 2: Convert to fraction form
    214,434.75/315,414.38 = 315,414.38/x
  3. Step 3: Cross multiply
    214,434.75x = 315,414.38 × 315,414.38
  4. Step 4: Simplify right side
    214,434.75x = 99,486,227,956.64
  5. Step 5: Solve for x
    x = 99,486,227,956.64/214,434.75
  6. Step 6: Final answer
    x = 463,946.39

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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.