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Finding the Third Proportional to 115,408.50 and 180,402.75

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Solution

The third proportional to 115,408.50 and 180,402.75 is: 281,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.50 : 180,402.75 = 180,402.75 : x
  2. Step 2: Convert to fraction form
    115,408.50/180,402.75 = 180,402.75/x
  3. Step 3: Cross multiply
    115,408.50x = 180,402.75 × 180,402.75
  4. Step 4: Simplify right side
    115,408.50x = 32,545,152,207.56
  5. Step 5: Solve for x
    x = 32,545,152,207.56/115,408.50
  6. Step 6: Final answer
    x = 281,999.61

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.