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Finding the Third Proportional to 259,801.50 and 413,715

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Solution

The third proportional to 259,801.50 and 413,715 is: 658,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,801.50 : 413,715 = 413,715 : x
  2. Step 2: Convert to fraction form
    259,801.50/413,715 = 413,715/x
  3. Step 3: Cross multiply
    259,801.50x = 413,715 × 413,715
  4. Step 4: Simplify right side
    259,801.50x = 171,160,101,225
  5. Step 5: Solve for x
    x = 171,160,101,225/259,801.50
  6. Step 6: Final answer
    x = 658,811.06

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.