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Finding the Third Proportional to 140,064.75 and 210,489.75

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Solution

The third proportional to 140,064.75 and 210,489.75 is: 316,324.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,064.75 : 210,489.75 = 210,489.75 : x
  2. Step 2: Convert to fraction form
    140,064.75/210,489.75 = 210,489.75/x
  3. Step 3: Cross multiply
    140,064.75x = 210,489.75 × 210,489.75
  4. Step 4: Simplify right side
    140,064.75x = 44,305,934,855.06
  5. Step 5: Solve for x
    x = 44,305,934,855.06/140,064.75
  6. Step 6: Final answer
    x = 316,324.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.