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Finding the Fourth Proportional to 201,819.80, 302,513.70 and 68,576.60

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Solution

The fourth proportional to 201,819.80, 302,513.70 and 68,576.60 is: 102,791.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,819.80 : 302,513.70 = 68,576.60 : x
  2. Step 2: Convert to fraction form
    201,819.80/302,513.70 = 68,576.60/x
  3. Step 3: Cross multiply
    201,819.80x = 302,513.70 × 68,576.60
  4. Step 4: Simplify right side
    201,819.80x = 20,745,360,999.42
  5. Step 5: Solve for x
    x = 20,745,360,999.42/201,819.80
  6. Step 6: Final answer
    x = 102,791.51

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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.