Home / 789.03-1,183.71-302.09

Finding the Fourth Proportional to 789.03, 1,183.71 and 302.09

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Solution

The fourth proportional to 789.03, 1,183.71 and 302.09 is: 453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.03 : 1,183.71 = 302.09 : x
  2. Step 2: Convert to fraction form
    789.03/1,183.71 = 302.09/x
  3. Step 3: Cross multiply
    789.03x = 1,183.71 × 302.09
  4. Step 4: Simplify right side
    789.03x = 357,581.04
  5. Step 5: Solve for x
    x = 357,581.04/789.03
  6. Step 6: Final answer
    x = 453.19

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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.