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Finding the Third Proportional to 135,671 and 289,354

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Solution

The third proportional to 135,671 and 289,354 is: 617,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,671 : 289,354 = 289,354 : x
  2. Step 2: Convert to fraction form
    135,671/289,354 = 289,354/x
  3. Step 3: Cross multiply
    135,671x = 289,354 × 289,354
  4. Step 4: Simplify right side
    135,671x = 83,725,737,316
  5. Step 5: Solve for x
    x = 83,725,737,316/135,671
  6. Step 6: Final answer
    x = 617,123.32

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.