Home / 395,122.11-545,269.20-213,834.18

Finding the Fourth Proportional to 395,122.11, 545,269.20 and 213,834.18

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Solution

The fourth proportional to 395,122.11, 545,269.20 and 213,834.18 is: 295,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,122.11 : 545,269.20 = 213,834.18 : x
  2. Step 2: Convert to fraction form
    395,122.11/545,269.20 = 213,834.18/x
  3. Step 3: Cross multiply
    395,122.11x = 545,269.20 × 213,834.18
  4. Step 4: Simplify right side
    395,122.11x = 116,597,193,504.14
  5. Step 5: Solve for x
    x = 116,597,193,504.14/395,122.11
  6. Step 6: Final answer
    x = 295,091.55

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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.