Home / 1,150.30-1,725.05-328.35

Finding the Fourth Proportional to 1,150.30, 1,725.05 and 328.35

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Solution

The fourth proportional to 1,150.30, 1,725.05 and 328.35 is: 492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.30 : 1,725.05 = 328.35 : x
  2. Step 2: Convert to fraction form
    1,150.30/1,725.05 = 328.35/x
  3. Step 3: Cross multiply
    1,150.30x = 1,725.05 × 328.35
  4. Step 4: Simplify right side
    1,150.30x = 566,427.69
  5. Step 5: Solve for x
    x = 566,427.69/1,150.30
  6. Step 6: Final answer
    x = 492.42

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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.