Home / 378,538.30-522,414.26-217,424.44

Finding the Fourth Proportional to 378,538.30, 522,414.26 and 217,424.44

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Solution

The fourth proportional to 378,538.30, 522,414.26 and 217,424.44 is: 300,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,538.30 : 522,414.26 = 217,424.44 : x
  2. Step 2: Convert to fraction form
    378,538.30/522,414.26 = 217,424.44/x
  3. Step 3: Cross multiply
    378,538.30x = 522,414.26 × 217,424.44
  4. Step 4: Simplify right side
    378,538.30x = 113,585,627,928.51
  5. Step 5: Solve for x
    x = 113,585,627,928.51/378,538.30
  6. Step 6: Final answer
    x = 300,063.77

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1.5x scale

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.