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Finding the Third Proportional to 109,345.50 and 239,187

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Solution

The third proportional to 109,345.50 and 239,187 is: 523,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,345.50 : 239,187 = 239,187 : x
  2. Step 2: Convert to fraction form
    109,345.50/239,187 = 239,187/x
  3. Step 3: Cross multiply
    109,345.50x = 239,187 × 239,187
  4. Step 4: Simplify right side
    109,345.50x = 57,210,420,969
  5. Step 5: Solve for x
    x = 57,210,420,969/109,345.50
  6. Step 6: Final answer
    x = 523,207.82

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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.