Home / 481,435.20-721,958.40-165,729.60

Finding the Fourth Proportional to 481,435.20, 721,958.40 and 165,729.60

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Solution

The fourth proportional to 481,435.20, 721,958.40 and 165,729.60 is: 248,527.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,435.20 : 721,958.40 = 165,729.60 : x
  2. Step 2: Convert to fraction form
    481,435.20/721,958.40 = 165,729.60/x
  3. Step 3: Cross multiply
    481,435.20x = 721,958.40 × 165,729.60
  4. Step 4: Simplify right side
    481,435.20x = 119,649,876,848.64
  5. Step 5: Solve for x
    x = 119,649,876,848.64/481,435.20
  6. Step 6: Final answer
    x = 248,527.48

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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.