Home / 321,613.08-443,853.30-178,419.25

Finding the Fourth Proportional to 321,613.08, 443,853.30 and 178,419.25

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Solution

The fourth proportional to 321,613.08, 443,853.30 and 178,419.25 is: 246,233.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,613.08 : 443,853.30 = 178,419.25 : x
  2. Step 2: Convert to fraction form
    321,613.08/443,853.30 = 178,419.25/x
  3. Step 3: Cross multiply
    321,613.08x = 443,853.30 × 178,419.25
  4. Step 4: Simplify right side
    321,613.08x = 79,191,972,896.03
  5. Step 5: Solve for x
    x = 79,191,972,896.03/321,613.08
  6. Step 6: Final answer
    x = 246,233.68

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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.