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Finding the Third Proportional to 134,898 and 289,479

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Solution

The third proportional to 134,898 and 289,479 is: 621,195.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,898 : 289,479 = 289,479 : x
  2. Step 2: Convert to fraction form
    134,898/289,479 = 289,479/x
  3. Step 3: Cross multiply
    134,898x = 289,479 × 289,479
  4. Step 4: Simplify right side
    134,898x = 83,798,091,441
  5. Step 5: Solve for x
    x = 83,798,091,441/134,898
  6. Step 6: Final answer
    x = 621,195.95

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.