Home / 394,939.53-545,015.35-213,651.41

Finding the Fourth Proportional to 394,939.53, 545,015.35 and 213,651.41

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Solution

The fourth proportional to 394,939.53, 545,015.35 and 213,651.41 is: 294,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,939.53 : 545,015.35 = 213,651.41 : x
  2. Step 2: Convert to fraction form
    394,939.53/545,015.35 = 213,651.41/x
  3. Step 3: Cross multiply
    394,939.53x = 545,015.35 × 213,651.41
  4. Step 4: Simplify right side
    394,939.53x = 116,443,295,541.13
  5. Step 5: Solve for x
    x = 116,443,295,541.13/394,939.53
  6. Step 6: Final answer
    x = 294,838.29

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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.