Home / 270,002.20-405,003.30-112,343.80

Finding the Fourth Proportional to 270,002.20, 405,003.30 and 112,343.80

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Solution

The fourth proportional to 270,002.20, 405,003.30 and 112,343.80 is: 168,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,002.20 : 405,003.30 = 112,343.80 : x
  2. Step 2: Convert to fraction form
    270,002.20/405,003.30 = 112,343.80/x
  3. Step 3: Cross multiply
    270,002.20x = 405,003.30 × 112,343.80
  4. Step 4: Simplify right side
    270,002.20x = 45,499,609,734.54
  5. Step 5: Solve for x
    x = 45,499,609,734.54/270,002.20
  6. Step 6: Final answer
    x = 168,515.70

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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.