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Finding the Third Proportional to 153,804 and 206,946

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Solution

The third proportional to 153,804 and 206,946 is: 278,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,804 : 206,946 = 206,946 : x
  2. Step 2: Convert to fraction form
    153,804/206,946 = 206,946/x
  3. Step 3: Cross multiply
    153,804x = 206,946 × 206,946
  4. Step 4: Simplify right side
    153,804x = 42,826,646,916
  5. Step 5: Solve for x
    x = 42,826,646,916/153,804
  6. Step 6: Final answer
    x = 278,449.50

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.