Home / 1,149.90-1,725.11-328.18

Finding the Fourth Proportional to 1,149.90, 1,725.11 and 328.18

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Solution

The fourth proportional to 1,149.90, 1,725.11 and 328.18 is: 492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149.90 : 1,725.11 = 328.18 : x
  2. Step 2: Convert to fraction form
    1,149.90/1,725.11 = 328.18/x
  3. Step 3: Cross multiply
    1,149.90x = 1,725.11 × 328.18
  4. Step 4: Simplify right side
    1,149.90x = 566,146.60
  5. Step 5: Solve for x
    x = 566,146.60/1,149.90
  6. Step 6: Final answer
    x = 492.34

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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.