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Finding the Third Proportional to 136,388 and 296,382

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Solution

The third proportional to 136,388 and 296,382 is: 644,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,388 : 296,382 = 296,382 : x
  2. Step 2: Convert to fraction form
    136,388/296,382 = 296,382/x
  3. Step 3: Cross multiply
    136,388x = 296,382 × 296,382
  4. Step 4: Simplify right side
    136,388x = 87,842,289,924
  5. Step 5: Solve for x
    x = 87,842,289,924/136,388
  6. Step 6: Final answer
    x = 644,061.72

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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.