Home / 356,336.05-491,557.29-220,326.52

Finding the Fourth Proportional to 356,336.05, 491,557.29 and 220,326.52

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Solution

The fourth proportional to 356,336.05, 491,557.29 and 220,326.52 is: 303,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,336.05 : 491,557.29 = 220,326.52 : x
  2. Step 2: Convert to fraction form
    356,336.05/491,557.29 = 220,326.52/x
  3. Step 3: Cross multiply
    356,336.05x = 491,557.29 × 220,326.52
  4. Step 4: Simplify right side
    356,336.05x = 108,303,107,086.33
  5. Step 5: Solve for x
    x = 108,303,107,086.33/356,336.05
  6. Step 6: Final answer
    x = 303,935.31

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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.