Home / 321,519.48-443,721.96-178,307.52

Finding the Fourth Proportional to 321,519.48, 443,721.96 and 178,307.52

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Solution

The fourth proportional to 321,519.48, 443,721.96 and 178,307.52 is: 246,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,519.48 : 443,721.96 = 178,307.52 : x
  2. Step 2: Convert to fraction form
    321,519.48/443,721.96 = 178,307.52/x
  3. Step 3: Cross multiply
    321,519.48x = 443,721.96 × 178,307.52
  4. Step 4: Simplify right side
    321,519.48x = 79,118,962,257.14
  5. Step 5: Solve for x
    x = 79,118,962,257.14/321,519.48
  6. Step 6: Final answer
    x = 246,078.29

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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.