Home / 321,352.08-443,458.17-178,109.04

Finding the Fourth Proportional to 321,352.08, 443,458.17 and 178,109.04

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Solution

The fourth proportional to 321,352.08, 443,458.17 and 178,109.04 is: 245,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,352.08 : 443,458.17 = 178,109.04 : x
  2. Step 2: Convert to fraction form
    321,352.08/443,458.17 = 178,109.04/x
  3. Step 3: Cross multiply
    321,352.08x = 443,458.17 × 178,109.04
  4. Step 4: Simplify right side
    321,352.08x = 78,983,908,938.86
  5. Step 5: Solve for x
    x = 78,983,908,938.86/321,352.08
  6. Step 6: Final answer
    x = 245,786.21

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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.