Home / 1,150.25-1,725.08-328.30

Finding the Fourth Proportional to 1,150.25, 1,725.08 and 328.30

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Solution

The fourth proportional to 1,150.25, 1,725.08 and 328.30 is: 492.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.25 : 1,725.08 = 328.30 : x
  2. Step 2: Convert to fraction form
    1,150.25/1,725.08 = 328.30/x
  3. Step 3: Cross multiply
    1,150.25x = 1,725.08 × 328.30
  4. Step 4: Simplify right side
    1,150.25x = 566,337.81
  5. Step 5: Solve for x
    x = 566,337.81/1,150.25
  6. Step 6: Final answer
    x = 492.36

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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.