Home / 727.18-1,090.75-179.36

Finding the Fourth Proportional to 727.18, 1,090.75 and 179.36

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Solution

The fourth proportional to 727.18, 1,090.75 and 179.36 is: 269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    727.18 : 1,090.75 = 179.36 : x
  2. Step 2: Convert to fraction form
    727.18/1,090.75 = 179.36/x
  3. Step 3: Cross multiply
    727.18x = 1,090.75 × 179.36
  4. Step 4: Simplify right side
    727.18x = 195,635.44
  5. Step 5: Solve for x
    x = 195,635.44/727.18
  6. Step 6: Final answer
    x = 269.03

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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.