Home / 1,110.14-1,664.61-330.03

Finding the Fourth Proportional to 1,110.14, 1,664.61 and 330.03

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Solution

The fourth proportional to 1,110.14, 1,664.61 and 330.03 is: 494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.14 : 1,664.61 = 330.03 : x
  2. Step 2: Convert to fraction form
    1,110.14/1,664.61 = 330.03/x
  3. Step 3: Cross multiply
    1,110.14x = 1,664.61 × 330.03
  4. Step 4: Simplify right side
    1,110.14x = 549,371.24
  5. Step 5: Solve for x
    x = 549,371.24/1,110.14
  6. Step 6: Final answer
    x = 494.87

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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.