Home / 321,268.18-443,344.89-178,027.78

Finding the Fourth Proportional to 321,268.18, 443,344.89 and 178,027.78

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Solution

The fourth proportional to 321,268.18, 443,344.89 and 178,027.78 is: 245,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,268.18 : 443,344.89 = 178,027.78 : x
  2. Step 2: Convert to fraction form
    321,268.18/443,344.89 = 178,027.78/x
  3. Step 3: Cross multiply
    321,268.18x = 443,344.89 × 178,027.78
  4. Step 4: Simplify right side
    321,268.18x = 78,927,706,541.04
  5. Step 5: Solve for x
    x = 78,927,706,541.04/321,268.18
  6. Step 6: Final answer
    x = 245,675.46

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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.