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Finding the Third Proportional to 136,525 and 206,695.50

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Solution

The third proportional to 136,525 and 206,695.50 is: 312,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,525 : 206,695.50 = 206,695.50 : x
  2. Step 2: Convert to fraction form
    136,525/206,695.50 = 206,695.50/x
  3. Step 3: Cross multiply
    136,525x = 206,695.50 × 206,695.50
  4. Step 4: Simplify right side
    136,525x = 42,723,029,720.25
  5. Step 5: Solve for x
    x = 42,723,029,720.25/136,525
  6. Step 6: Final answer
    x = 312,931.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.