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Finding the Third Proportional to 117,703.50 and 256,729.50

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Solution

The third proportional to 117,703.50 and 256,729.50 is: 559,966.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.50 : 256,729.50 = 256,729.50 : x
  2. Step 2: Convert to fraction form
    117,703.50/256,729.50 = 256,729.50/x
  3. Step 3: Cross multiply
    117,703.50x = 256,729.50 × 256,729.50
  4. Step 4: Simplify right side
    117,703.50x = 65,910,036,170.25
  5. Step 5: Solve for x
    x = 65,910,036,170.25/117,703.50
  6. Step 6: Final answer
    x = 559,966.66

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.