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Finding the Third Proportional to 219,885.75 and 336,939.75

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Solution

The third proportional to 219,885.75 and 336,939.75 is: 516,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,885.75 : 336,939.75 = 336,939.75 : x
  2. Step 2: Convert to fraction form
    219,885.75/336,939.75 = 336,939.75/x
  3. Step 3: Cross multiply
    219,885.75x = 336,939.75 × 336,939.75
  4. Step 4: Simplify right side
    219,885.75x = 113,528,395,130.06
  5. Step 5: Solve for x
    x = 113,528,395,130.06/219,885.75
  6. Step 6: Final answer
    x = 516,306.29

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.