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Finding the Fourth Proportional to 201,489.09, 302,207.72 and 68,363.97

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Solution

The fourth proportional to 201,489.09, 302,207.72 and 68,363.97 is: 102,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,489.09 : 302,207.72 = 68,363.97 : x
  2. Step 2: Convert to fraction form
    201,489.09/302,207.72 = 68,363.97/x
  3. Step 3: Cross multiply
    201,489.09x = 302,207.72 × 68,363.97
  4. Step 4: Simplify right side
    201,489.09x = 20,660,119,162.03
  5. Step 5: Solve for x
    x = 20,660,119,162.03/201,489.09
  6. Step 6: Final answer
    x = 102,537.16

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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.