Home / 298,620.12-447,996.62-109,080.12

Finding the Fourth Proportional to 298,620.12, 447,996.62 and 109,080.12

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Solution

The fourth proportional to 298,620.12, 447,996.62 and 109,080.12 is: 163,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,620.12 : 447,996.62 = 109,080.12 : x
  2. Step 2: Convert to fraction form
    298,620.12/447,996.62 = 109,080.12/x
  3. Step 3: Cross multiply
    298,620.12x = 447,996.62 × 109,080.12
  4. Step 4: Simplify right side
    298,620.12x = 48,867,524,501.90
  5. Step 5: Solve for x
    x = 48,867,524,501.90/298,620.12
  6. Step 6: Final answer
    x = 163,644.45

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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.