Home / 1,204.20-1,806.23-338.51

Finding the Fourth Proportional to 1,204.20, 1,806.23 and 338.51

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Solution

The fourth proportional to 1,204.20, 1,806.23 and 338.51 is: 507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.20 : 1,806.23 = 338.51 : x
  2. Step 2: Convert to fraction form
    1,204.20/1,806.23 = 338.51/x
  3. Step 3: Cross multiply
    1,204.20x = 1,806.23 × 338.51
  4. Step 4: Simplify right side
    1,204.20x = 611,416.19
  5. Step 5: Solve for x
    x = 611,416.19/1,204.20
  6. Step 6: Final answer
    x = 507.74

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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.