Home / 321,243.72-443,317.14-178,002.60

Finding the Fourth Proportional to 321,243.72, 443,317.14 and 178,002.60

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Solution

The fourth proportional to 321,243.72, 443,317.14 and 178,002.60 is: 245,644.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,243.72 : 443,317.14 = 178,002.60 : x
  2. Step 2: Convert to fraction form
    321,243.72/443,317.14 = 178,002.60/x
  3. Step 3: Cross multiply
    321,243.72x = 443,317.14 × 178,002.60
  4. Step 4: Simplify right side
    321,243.72x = 78,911,603,544.56
  5. Step 5: Solve for x
    x = 78,911,603,544.56/321,243.72
  6. Step 6: Final answer
    x = 245,644.03

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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.