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Finding the Third Proportional to 202,156 and 313,893

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Solution

The third proportional to 202,156 and 313,893 is: 487,390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,156 : 313,893 = 313,893 : x
  2. Step 2: Convert to fraction form
    202,156/313,893 = 313,893/x
  3. Step 3: Cross multiply
    202,156x = 313,893 × 313,893
  4. Step 4: Simplify right side
    202,156x = 98,528,815,449
  5. Step 5: Solve for x
    x = 98,528,815,449/202,156
  6. Step 6: Final answer
    x = 487,390.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.