Home / 321,743.88-443,985.30-178,499.16

Finding the Fourth Proportional to 321,743.88, 443,985.30 and 178,499.16

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Solution

The fourth proportional to 321,743.88, 443,985.30 and 178,499.16 is: 246,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,743.88 : 443,985.30 = 178,499.16 : x
  2. Step 2: Convert to fraction form
    321,743.88/443,985.30 = 178,499.16/x
  3. Step 3: Cross multiply
    321,743.88x = 443,985.30 × 178,499.16
  4. Step 4: Simplify right side
    321,743.88x = 79,251,003,102.35
  5. Step 5: Solve for x
    x = 79,251,003,102.35/321,743.88
  6. Step 6: Final answer
    x = 246,317.05

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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.