Home / 321,637.12-443,912.37-178,443.29

Finding the Fourth Proportional to 321,637.12, 443,912.37 and 178,443.29

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Solution

The fourth proportional to 321,637.12, 443,912.37 and 178,443.29 is: 246,281.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,637.12 : 443,912.37 = 178,443.29 : x
  2. Step 2: Convert to fraction form
    321,637.12/443,912.37 = 178,443.29/x
  3. Step 3: Cross multiply
    321,637.12x = 443,912.37 × 178,443.29
  4. Step 4: Simplify right side
    321,637.12x = 79,213,184,884.28
  5. Step 5: Solve for x
    x = 79,213,184,884.28/321,637.12
  6. Step 6: Final answer
    x = 246,281.23

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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.