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Finding the Third Proportional to 133,778 and 207,364

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Solution

The third proportional to 133,778 and 207,364 is: 321,426.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,778 : 207,364 = 207,364 : x
  2. Step 2: Convert to fraction form
    133,778/207,364 = 207,364/x
  3. Step 3: Cross multiply
    133,778x = 207,364 × 207,364
  4. Step 4: Simplify right side
    133,778x = 42,999,828,496
  5. Step 5: Solve for x
    x = 42,999,828,496/133,778
  6. Step 6: Final answer
    x = 321,426.76

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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.