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Finding the Third Proportional to 101,239.50 and 219,957

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Solution

The third proportional to 101,239.50 and 219,957 is: 477,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,239.50 : 219,957 = 219,957 : x
  2. Step 2: Convert to fraction form
    101,239.50/219,957 = 219,957/x
  3. Step 3: Cross multiply
    101,239.50x = 219,957 × 219,957
  4. Step 4: Simplify right side
    101,239.50x = 48,381,081,849
  5. Step 5: Solve for x
    x = 48,381,081,849/101,239.50
  6. Step 6: Final answer
    x = 477,887.40

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.