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Finding the Third Proportional to 137,803.50 and 206,703

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Solution

The third proportional to 137,803.50 and 206,703 is: 310,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,803.50 : 206,703 = 206,703 : x
  2. Step 2: Convert to fraction form
    137,803.50/206,703 = 206,703/x
  3. Step 3: Cross multiply
    137,803.50x = 206,703 × 206,703
  4. Step 4: Simplify right side
    137,803.50x = 42,726,130,209
  5. Step 5: Solve for x
    x = 42,726,130,209/137,803.50
  6. Step 6: Final answer
    x = 310,051.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.