Home / 394,977.39-545,082.81-222,937.23

Finding the Fourth Proportional to 394,977.39, 545,082.81 and 222,937.23

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Solution

The fourth proportional to 394,977.39, 545,082.81 and 222,937.23 is: 307,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,977.39 : 545,082.81 = 222,937.23 : x
  2. Step 2: Convert to fraction form
    394,977.39/545,082.81 = 222,937.23/x
  3. Step 3: Cross multiply
    394,977.39x = 545,082.81 × 222,937.23
  4. Step 4: Simplify right side
    394,977.39x = 121,519,251,782.02
  5. Step 5: Solve for x
    x = 121,519,251,782.02/394,977.39
  6. Step 6: Final answer
    x = 307,661.29

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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.