Home / 1,244.91-1,867.23-320.43

Finding the Fourth Proportional to 1,244.91, 1,867.23 and 320.43

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Solution

The fourth proportional to 1,244.91, 1,867.23 and 320.43 is: 480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.91 : 1,867.23 = 320.43 : x
  2. Step 2: Convert to fraction form
    1,244.91/1,867.23 = 320.43/x
  3. Step 3: Cross multiply
    1,244.91x = 1,867.23 × 320.43
  4. Step 4: Simplify right side
    1,244.91x = 598,316.51
  5. Step 5: Solve for x
    x = 598,316.51/1,244.91
  6. Step 6: Final answer
    x = 480.61

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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.