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Finding the Third Proportional to 136,879.88 and 291,559.50

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Solution

The third proportional to 136,879.88 and 291,559.50 is: 621,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,879.88 : 291,559.50 = 291,559.50 : x
  2. Step 2: Convert to fraction form
    136,879.88/291,559.50 = 291,559.50/x
  3. Step 3: Cross multiply
    136,879.88x = 291,559.50 × 291,559.50
  4. Step 4: Simplify right side
    136,879.88x = 85,006,942,040.25
  5. Step 5: Solve for x
    x = 85,006,942,040.25/136,879.88
  6. Step 6: Final answer
    x = 621,033.17

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.