Home / 321,620.04-443,867.94-178,407.90

Finding the Fourth Proportional to 321,620.04, 443,867.94 and 178,407.90

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Solution

The fourth proportional to 321,620.04, 443,867.94 and 178,407.90 is: 246,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,620.04 : 443,867.94 = 178,407.90 : x
  2. Step 2: Convert to fraction form
    321,620.04/443,867.94 = 178,407.90/x
  3. Step 3: Cross multiply
    321,620.04x = 443,867.94 × 178,407.90
  4. Step 4: Simplify right side
    321,620.04x = 79,189,547,052.73
  5. Step 5: Solve for x
    x = 79,189,547,052.73/321,620.04
  6. Step 6: Final answer
    x = 246,220.81

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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.