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Finding the Third Proportional to 115,191.50 and 180,311.50

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Solution

The third proportional to 115,191.50 and 180,311.50 is: 282,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.50 : 180,311.50 = 180,311.50 : x
  2. Step 2: Convert to fraction form
    115,191.50/180,311.50 = 180,311.50/x
  3. Step 3: Cross multiply
    115,191.50x = 180,311.50 × 180,311.50
  4. Step 4: Simplify right side
    115,191.50x = 32,512,237,032.25
  5. Step 5: Solve for x
    x = 32,512,237,032.25/115,191.50
  6. Step 6: Final answer
    x = 282,245.11

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.