Home / 283,621.20-391,389.48-154,556.88

Finding the Fourth Proportional to 283,621.20, 391,389.48 and 154,556.88

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Solution

The fourth proportional to 283,621.20, 391,389.48 and 154,556.88 is: 213,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,621.20 : 391,389.48 = 154,556.88 : x
  2. Step 2: Convert to fraction form
    283,621.20/391,389.48 = 154,556.88/x
  3. Step 3: Cross multiply
    283,621.20x = 391,389.48 × 154,556.88
  4. Step 4: Simplify right side
    283,621.20x = 60,491,936,893.62
  5. Step 5: Solve for x
    x = 60,491,936,893.62/283,621.20
  6. Step 6: Final answer
    x = 213,284.26

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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.