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Finding the Third Proportional to 180,867 and 266,073.50

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Solution

The third proportional to 180,867 and 266,073.50 is: 391,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,867 : 266,073.50 = 266,073.50 : x
  2. Step 2: Convert to fraction form
    180,867/266,073.50 = 266,073.50/x
  3. Step 3: Cross multiply
    180,867x = 266,073.50 × 266,073.50
  4. Step 4: Simplify right side
    180,867x = 70,795,107,402.25
  5. Step 5: Solve for x
    x = 70,795,107,402.25/180,867
  6. Step 6: Final answer
    x = 391,420.81

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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.