Home / 678.03-1,016.23-244.68

Finding the Fourth Proportional to 678.03, 1,016.23 and 244.68

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Solution

The fourth proportional to 678.03, 1,016.23 and 244.68 is: 366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678.03 : 1,016.23 = 244.68 : x
  2. Step 2: Convert to fraction form
    678.03/1,016.23 = 244.68/x
  3. Step 3: Cross multiply
    678.03x = 1,016.23 × 244.68
  4. Step 4: Simplify right side
    678.03x = 248,651.16
  5. Step 5: Solve for x
    x = 248,651.16/678.03
  6. Step 6: Final answer
    x = 366.73

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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.