Home / 321,579.05-443,750.01-178,338.65

Finding the Fourth Proportional to 321,579.05, 443,750.01 and 178,338.65

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Solution

The fourth proportional to 321,579.05, 443,750.01 and 178,338.65 is: 246,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,579.05 : 443,750.01 = 178,338.65 : x
  2. Step 2: Convert to fraction form
    321,579.05/443,750.01 = 178,338.65/x
  3. Step 3: Cross multiply
    321,579.05x = 443,750.01 × 178,338.65
  4. Step 4: Simplify right side
    321,579.05x = 79,137,777,720.89
  5. Step 5: Solve for x
    x = 79,137,777,720.89/321,579.05
  6. Step 6: Final answer
    x = 246,091.21

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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.