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Finding the Third Proportional to 130,890 and 282,676

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Solution

The third proportional to 130,890 and 282,676 is: 610,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,890 : 282,676 = 282,676 : x
  2. Step 2: Convert to fraction form
    130,890/282,676 = 282,676/x
  3. Step 3: Cross multiply
    130,890x = 282,676 × 282,676
  4. Step 4: Simplify right side
    130,890x = 79,905,720,976
  5. Step 5: Solve for x
    x = 79,905,720,976/130,890
  6. Step 6: Final answer
    x = 610,479.95

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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.