Home / 750.20-1,125.32-230.18

Finding the Fourth Proportional to 750.20, 1,125.32 and 230.18

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Solution

The fourth proportional to 750.20, 1,125.32 and 230.18 is: 345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.20 : 1,125.32 = 230.18 : x
  2. Step 2: Convert to fraction form
    750.20/1,125.32 = 230.18/x
  3. Step 3: Cross multiply
    750.20x = 1,125.32 × 230.18
  4. Step 4: Simplify right side
    750.20x = 259,019.38
  5. Step 5: Solve for x
    x = 259,019.38/750.20
  6. Step 6: Final answer
    x = 345.27

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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.