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Finding the Fourth Proportional to 378,799.94, 522,833.36 and 217,748.41

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Solution

The fourth proportional to 378,799.94, 522,833.36 and 217,748.41 is: 300,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,799.94 : 522,833.36 = 217,748.41 : x
  2. Step 2: Convert to fraction form
    378,799.94/522,833.36 = 217,748.41/x
  3. Step 3: Cross multiply
    378,799.94x = 522,833.36 × 217,748.41
  4. Step 4: Simplify right side
    378,799.94x = 113,846,130,439.13
  5. Step 5: Solve for x
    x = 113,846,130,439.13/378,799.94
  6. Step 6: Final answer
    x = 300,544.21

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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.