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Finding the Third Proportional to 218,877.75 and 479,272.50

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Solution

The third proportional to 218,877.75 and 479,272.50 is: 1,049,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,877.75 : 479,272.50 = 479,272.50 : x
  2. Step 2: Convert to fraction form
    218,877.75/479,272.50 = 479,272.50/x
  3. Step 3: Cross multiply
    218,877.75x = 479,272.50 × 479,272.50
  4. Step 4: Simplify right side
    218,877.75x = 229,702,129,256.25
  5. Step 5: Solve for x
    x = 229,702,129,256.25/218,877.75
  6. Step 6: Final answer
    x = 1,049,454.00

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.