Home / 321,425.12-443,536.71-178,172.93

Finding the Fourth Proportional to 321,425.12, 443,536.71 and 178,172.93

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Solution

The fourth proportional to 321,425.12, 443,536.71 and 178,172.93 is: 245,862.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,425.12 : 443,536.71 = 178,172.93 : x
  2. Step 2: Convert to fraction form
    321,425.12/443,536.71 = 178,172.93/x
  3. Step 3: Cross multiply
    321,425.12x = 443,536.71 × 178,172.93
  4. Step 4: Simplify right side
    321,425.12x = 79,026,235,183.26
  5. Step 5: Solve for x
    x = 79,026,235,183.26/321,425.12
  6. Step 6: Final answer
    x = 245,862.04

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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.