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Finding the Fourth Proportional to 298,002.20, 447,003.30 and 295,928.60

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Solution

The fourth proportional to 298,002.20, 447,003.30 and 295,928.60 is: 443,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,002.20 : 447,003.30 = 295,928.60 : x
  2. Step 2: Convert to fraction form
    298,002.20/447,003.30 = 295,928.60/x
  3. Step 3: Cross multiply
    298,002.20x = 447,003.30 × 295,928.60
  4. Step 4: Simplify right side
    298,002.20x = 132,281,060,764.38
  5. Step 5: Solve for x
    x = 132,281,060,764.38/298,002.20
  6. Step 6: Final answer
    x = 443,892.90

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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.