Home / 1,150.20-1,725.36-328.54

Finding the Fourth Proportional to 1,150.20, 1,725.36 and 328.54

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Solution

The fourth proportional to 1,150.20, 1,725.36 and 328.54 is: 492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.20 : 1,725.36 = 328.54 : x
  2. Step 2: Convert to fraction form
    1,150.20/1,725.36 = 328.54/x
  3. Step 3: Cross multiply
    1,150.20x = 1,725.36 × 328.54
  4. Step 4: Simplify right side
    1,150.20x = 566,849.77
  5. Step 5: Solve for x
    x = 566,849.77/1,150.20
  6. Step 6: Final answer
    x = 492.83

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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.