Home / 1,204.27-1,806.37-338.58

Finding the Fourth Proportional to 1,204.27, 1,806.37 and 338.58

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Solution

The fourth proportional to 1,204.27, 1,806.37 and 338.58 is: 507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.27 : 1,806.37 = 338.58 : x
  2. Step 2: Convert to fraction form
    1,204.27/1,806.37 = 338.58/x
  3. Step 3: Cross multiply
    1,204.27x = 1,806.37 × 338.58
  4. Step 4: Simplify right side
    1,204.27x = 611,599.91
  5. Step 5: Solve for x
    x = 611,599.91/1,204.27
  6. Step 6: Final answer
    x = 507.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.