Home / 431,682.30-647,154.24-165,633.75

Finding the Fourth Proportional to 431,682.30, 647,154.24 and 165,633.75

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Solution

The fourth proportional to 431,682.30, 647,154.24 and 165,633.75 is: 248,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,682.30 : 647,154.24 = 165,633.75 : x
  2. Step 2: Convert to fraction form
    431,682.30/647,154.24 = 165,633.75/x
  3. Step 3: Cross multiply
    431,682.30x = 647,154.24 × 165,633.75
  4. Step 4: Simplify right side
    431,682.30x = 107,190,583,599.60
  5. Step 5: Solve for x
    x = 107,190,583,599.60/431,682.30
  6. Step 6: Final answer
    x = 248,308.96

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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.