Home / 1,100.23-1,650.35-330.73

Finding the Fourth Proportional to 1,100.23, 1,650.35 and 330.73

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Solution

The fourth proportional to 1,100.23, 1,650.35 and 330.73 is: 496.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100.23 : 1,650.35 = 330.73 : x
  2. Step 2: Convert to fraction form
    1,100.23/1,650.35 = 330.73/x
  3. Step 3: Cross multiply
    1,100.23x = 1,650.35 × 330.73
  4. Step 4: Simplify right side
    1,100.23x = 545,814.48
  5. Step 5: Solve for x
    x = 545,814.48/1,100.23
  6. Step 6: Final answer
    x = 496.09

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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.