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Finding the Third Proportional to 133,855.88 and 207,263.81

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Solution

The third proportional to 133,855.88 and 207,263.81 is: 320,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,855.88 : 207,263.81 = 207,263.81 : x
  2. Step 2: Convert to fraction form
    133,855.88/207,263.81 = 207,263.81/x
  3. Step 3: Cross multiply
    133,855.88x = 207,263.81 × 207,263.81
  4. Step 4: Simplify right side
    133,855.88x = 42,958,287,972.04
  5. Step 5: Solve for x
    x = 42,958,287,972.04/133,855.88
  6. Step 6: Final answer
    x = 320,929.42

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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.