Home / 394,935.37-545,009.15-213,646.85

Finding the Fourth Proportional to 394,935.37, 545,009.15 and 213,646.85

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Solution

The fourth proportional to 394,935.37, 545,009.15 and 213,646.85 is: 294,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,935.37 : 545,009.15 = 213,646.85 : x
  2. Step 2: Convert to fraction form
    394,935.37/545,009.15 = 213,646.85/x
  3. Step 3: Cross multiply
    394,935.37x = 545,009.15 × 213,646.85
  4. Step 4: Simplify right side
    394,935.37x = 116,439,488,118.68
  5. Step 5: Solve for x
    x = 116,439,488,118.68/394,935.37
  6. Step 6: Final answer
    x = 294,831.75

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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.