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Finding the Fourth Proportional to 378,365.88, 522,240.30 and 227,551.80

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Solution

The fourth proportional to 378,365.88, 522,240.30 and 227,551.80 is: 314,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,365.88 : 522,240.30 = 227,551.80 : x
  2. Step 2: Convert to fraction form
    378,365.88/522,240.30 = 227,551.80/x
  3. Step 3: Cross multiply
    378,365.88x = 522,240.30 × 227,551.80
  4. Step 4: Simplify right side
    378,365.88x = 118,836,720,297.54
  5. Step 5: Solve for x
    x = 118,836,720,297.54/378,365.88
  6. Step 6: Final answer
    x = 314,078.85

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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.