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Finding the Fourth Proportional to 298,997.02, 447,988.02 and 180,419.20

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Solution

The fourth proportional to 298,997.02, 447,988.02 and 180,419.20 is: 270,322.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,997.02 : 447,988.02 = 180,419.20 : x
  2. Step 2: Convert to fraction form
    298,997.02/447,988.02 = 180,419.20/x
  3. Step 3: Cross multiply
    298,997.02x = 447,988.02 × 180,419.20
  4. Step 4: Simplify right side
    298,997.02x = 80,825,640,177.98
  5. Step 5: Solve for x
    x = 80,825,640,177.98/298,997.02
  6. Step 6: Final answer
    x = 270,322.56

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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.