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Finding the Third Proportional to 132,880 and 286,630

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Solution

The third proportional to 132,880 and 286,630 is: 618,277.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,880 : 286,630 = 286,630 : x
  2. Step 2: Convert to fraction form
    132,880/286,630 = 286,630/x
  3. Step 3: Cross multiply
    132,880x = 286,630 × 286,630
  4. Step 4: Simplify right side
    132,880x = 82,156,756,900
  5. Step 5: Solve for x
    x = 82,156,756,900/132,880
  6. Step 6: Final answer
    x = 618,277.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.