Home / 481,441.20-721,967.40-165,735.60

Finding the Fourth Proportional to 481,441.20, 721,967.40 and 165,735.60

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Solution

The fourth proportional to 481,441.20, 721,967.40 and 165,735.60 is: 248,536.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,441.20 : 721,967.40 = 165,735.60 : x
  2. Step 2: Convert to fraction form
    481,441.20/721,967.40 = 165,735.60/x
  3. Step 3: Cross multiply
    481,441.20x = 721,967.40 × 165,735.60
  4. Step 4: Simplify right side
    481,441.20x = 119,655,700,219.44
  5. Step 5: Solve for x
    x = 119,655,700,219.44/481,441.20
  6. Step 6: Final answer
    x = 248,536.48

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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.