Home / 394,972.88-545,076.59-222,932.72

Finding the Fourth Proportional to 394,972.88, 545,076.59 and 222,932.72

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Solution

The fourth proportional to 394,972.88, 545,076.59 and 222,932.72 is: 307,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,972.88 : 545,076.59 = 222,932.72 : x
  2. Step 2: Convert to fraction form
    394,972.88/545,076.59 = 222,932.72/x
  3. Step 3: Cross multiply
    394,972.88x = 545,076.59 × 222,932.72
  4. Step 4: Simplify right side
    394,972.88x = 121,515,408,319.05
  5. Step 5: Solve for x
    x = 121,515,408,319.05/394,972.88
  6. Step 6: Final answer
    x = 307,655.07

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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.