Home / 1,150.30-1,725.68-328.58

Finding the Fourth Proportional to 1,150.30, 1,725.68 and 328.58

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Solution

The fourth proportional to 1,150.30, 1,725.68 and 328.58 is: 492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.30 : 1,725.68 = 328.58 : x
  2. Step 2: Convert to fraction form
    1,150.30/1,725.68 = 328.58/x
  3. Step 3: Cross multiply
    1,150.30x = 1,725.68 × 328.58
  4. Step 4: Simplify right side
    1,150.30x = 567,026.53
  5. Step 5: Solve for x
    x = 567,026.53/1,150.30
  6. Step 6: Final answer
    x = 492.94

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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.