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Finding the Third Proportional to 286,531.50 and 387,755.25

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Solution

The third proportional to 286,531.50 and 387,755.25 is: 524,738.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,531.50 : 387,755.25 = 387,755.25 : x
  2. Step 2: Convert to fraction form
    286,531.50/387,755.25 = 387,755.25/x
  3. Step 3: Cross multiply
    286,531.50x = 387,755.25 × 387,755.25
  4. Step 4: Simplify right side
    286,531.50x = 150,354,133,902.56
  5. Step 5: Solve for x
    x = 150,354,133,902.56/286,531.50
  6. Step 6: Final answer
    x = 524,738.59

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.