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Finding the Third Proportional to 134,115 and 287,700

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Solution

The third proportional to 134,115 and 287,700 is: 617,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,115 : 287,700 = 287,700 : x
  2. Step 2: Convert to fraction form
    134,115/287,700 = 287,700/x
  3. Step 3: Cross multiply
    134,115x = 287,700 × 287,700
  4. Step 4: Simplify right side
    134,115x = 82,771,290,000
  5. Step 5: Solve for x
    x = 82,771,290,000/134,115
  6. Step 6: Final answer
    x = 617,166.54

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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.