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Finding the Third Proportional to 131,244 and 289,560

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Solution

The third proportional to 131,244 and 289,560 is: 638,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,244 : 289,560 = 289,560 : x
  2. Step 2: Convert to fraction form
    131,244/289,560 = 289,560/x
  3. Step 3: Cross multiply
    131,244x = 289,560 × 289,560
  4. Step 4: Simplify right side
    131,244x = 83,844,993,600
  5. Step 5: Solve for x
    x = 83,844,993,600/131,244
  6. Step 6: Final answer
    x = 638,848.20

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.