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Finding the Third Proportional to 137,613 and 209,977.13

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Solution

The third proportional to 137,613 and 209,977.13 is: 320,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,613 : 209,977.13 = 209,977.13 : x
  2. Step 2: Convert to fraction form
    137,613/209,977.13 = 209,977.13/x
  3. Step 3: Cross multiply
    137,613x = 209,977.13 × 209,977.13
  4. Step 4: Simplify right side
    137,613x = 44,090,393,023.27
  5. Step 5: Solve for x
    x = 44,090,393,023.27/137,613
  6. Step 6: Final answer
    x = 320,394.10

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.