Home / 321,282.05-443,362.61-178,040.84

Finding the Fourth Proportional to 321,282.05, 443,362.61 and 178,040.84

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Solution

The fourth proportional to 321,282.05, 443,362.61 and 178,040.84 is: 245,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,282.05 : 443,362.61 = 178,040.84 : x
  2. Step 2: Convert to fraction form
    321,282.05/443,362.61 = 178,040.84/x
  3. Step 3: Cross multiply
    321,282.05x = 443,362.61 × 178,040.84
  4. Step 4: Simplify right side
    321,282.05x = 78,936,649,737.28
  5. Step 5: Solve for x
    x = 78,936,649,737.28/321,282.05
  6. Step 6: Final answer
    x = 245,692.69

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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.