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Finding the Third Proportional to 131,756 and 292,990

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Solution

The third proportional to 131,756 and 292,990 is: 651,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,756 : 292,990 = 292,990 : x
  2. Step 2: Convert to fraction form
    131,756/292,990 = 292,990/x
  3. Step 3: Cross multiply
    131,756x = 292,990 × 292,990
  4. Step 4: Simplify right side
    131,756x = 85,843,140,100
  5. Step 5: Solve for x
    x = 85,843,140,100/131,756
  6. Step 6: Final answer
    x = 651,531.16

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.