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Finding the Fourth Proportional to 318,530.72, 439,559.39 and 182,469.96

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Solution

The fourth proportional to 318,530.72, 439,559.39 and 182,469.96 is: 251,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,530.72 : 439,559.39 = 182,469.96 : x
  2. Step 2: Convert to fraction form
    318,530.72/439,559.39 = 182,469.96/x
  3. Step 3: Cross multiply
    318,530.72x = 439,559.39 × 182,469.96
  4. Step 4: Simplify right side
    318,530.72x = 80,206,384,767.10
  5. Step 5: Solve for x
    x = 80,206,384,767.10/318,530.72
  6. Step 6: Final answer
    x = 251,801.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.