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Finding the Third Proportional to 139,426.31 and 221,593.22

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Solution

The third proportional to 139,426.31 and 221,593.22 is: 352,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,426.31 : 221,593.22 = 221,593.22 : x
  2. Step 2: Convert to fraction form
    139,426.31/221,593.22 = 221,593.22/x
  3. Step 3: Cross multiply
    139,426.31x = 221,593.22 × 221,593.22
  4. Step 4: Simplify right side
    139,426.31x = 49,103,554,595.99
  5. Step 5: Solve for x
    x = 49,103,554,595.99/139,426.31
  6. Step 6: Final answer
    x = 352,182.84

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.