Home / 321,280.89-443,370.11-178,043.25

Finding the Fourth Proportional to 321,280.89, 443,370.11 and 178,043.25

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Solution

The fourth proportional to 321,280.89, 443,370.11 and 178,043.25 is: 245,701.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,280.89 : 443,370.11 = 178,043.25 : x
  2. Step 2: Convert to fraction form
    321,280.89/443,370.11 = 178,043.25/x
  3. Step 3: Cross multiply
    321,280.89x = 443,370.11 × 178,043.25
  4. Step 4: Simplify right side
    321,280.89x = 78,939,054,447.04
  5. Step 5: Solve for x
    x = 78,939,054,447.04/321,280.89
  6. Step 6: Final answer
    x = 245,701.06

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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.