Home / 393,964.43-543,673.15-224,198.55

Finding the Fourth Proportional to 393,964.43, 543,673.15 and 224,198.55

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Solution

The fourth proportional to 393,964.43, 543,673.15 and 224,198.55 is: 309,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,964.43 : 543,673.15 = 224,198.55 : x
  2. Step 2: Convert to fraction form
    393,964.43/543,673.15 = 224,198.55/x
  3. Step 3: Cross multiply
    393,964.43x = 543,673.15 × 224,198.55
  4. Step 4: Simplify right side
    393,964.43x = 121,890,731,343.44
  5. Step 5: Solve for x
    x = 121,890,731,343.44/393,964.43
  6. Step 6: Final answer
    x = 309,395.27

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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.