Home / 1,110.28-1,665.66-330.34

Finding the Fourth Proportional to 1,110.28, 1,665.66 and 330.34

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Solution

The fourth proportional to 1,110.28, 1,665.66 and 330.34 is: 495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.28 : 1,665.66 = 330.34 : x
  2. Step 2: Convert to fraction form
    1,110.28/1,665.66 = 330.34/x
  3. Step 3: Cross multiply
    1,110.28x = 1,665.66 × 330.34
  4. Step 4: Simplify right side
    1,110.28x = 550,234.12
  5. Step 5: Solve for x
    x = 550,234.12/1,110.28
  6. Step 6: Final answer
    x = 495.58

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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.