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Finding the Fourth Proportional to 285,286.20, 427,929.30 and 166,896.60

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Solution

The fourth proportional to 285,286.20, 427,929.30 and 166,896.60 is: 250,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,286.20 : 427,929.30 = 166,896.60 : x
  2. Step 2: Convert to fraction form
    285,286.20/427,929.30 = 166,896.60/x
  3. Step 3: Cross multiply
    285,286.20x = 427,929.30 × 166,896.60
  4. Step 4: Simplify right side
    285,286.20x = 71,419,945,210.38
  5. Step 5: Solve for x
    x = 71,419,945,210.38/285,286.20
  6. Step 6: Final answer
    x = 250,344.90

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1.5x scale

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.