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Finding the Fourth Proportional to 201,744.70, 302,645.85 and 68,631.10

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Solution

The fourth proportional to 201,744.70, 302,645.85 and 68,631.10 is: 102,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,744.70 : 302,645.85 = 68,631.10 : x
  2. Step 2: Convert to fraction form
    201,744.70/302,645.85 = 68,631.10/x
  3. Step 3: Cross multiply
    201,744.70x = 302,645.85 × 68,631.10
  4. Step 4: Simplify right side
    201,744.70x = 20,770,917,595.94
  5. Step 5: Solve for x
    x = 20,770,917,595.94/201,744.70
  6. Step 6: Final answer
    x = 102,956.45

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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.