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Finding the Third Proportional to 131,706 and 288,396

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Solution

The third proportional to 131,706 and 288,396 is: 631,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,706 : 288,396 = 288,396 : x
  2. Step 2: Convert to fraction form
    131,706/288,396 = 288,396/x
  3. Step 3: Cross multiply
    131,706x = 288,396 × 288,396
  4. Step 4: Simplify right side
    131,706x = 83,172,252,816
  5. Step 5: Solve for x
    x = 83,172,252,816/131,706
  6. Step 6: Final answer
    x = 631,499.35

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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.