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Finding the Third Proportional to 203,613 and 438,778

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Solution

The third proportional to 203,613 and 438,778 is: 945,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,613 : 438,778 = 438,778 : x
  2. Step 2: Convert to fraction form
    203,613/438,778 = 438,778/x
  3. Step 3: Cross multiply
    203,613x = 438,778 × 438,778
  4. Step 4: Simplify right side
    203,613x = 192,526,133,284
  5. Step 5: Solve for x
    x = 192,526,133,284/203,613
  6. Step 6: Final answer
    x = 945,549.32

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.