Home / 1,150.11-1,725.13-328.39

Finding the Fourth Proportional to 1,150.11, 1,725.13 and 328.39

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Solution

The fourth proportional to 1,150.11, 1,725.13 and 328.39 is: 492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.11 : 1,725.13 = 328.39 : x
  2. Step 2: Convert to fraction form
    1,150.11/1,725.13 = 328.39/x
  3. Step 3: Cross multiply
    1,150.11x = 1,725.13 × 328.39
  4. Step 4: Simplify right side
    1,150.11x = 566,512.46
  5. Step 5: Solve for x
    x = 566,512.46/1,150.11
  6. Step 6: Final answer
    x = 492.57

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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.