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Finding the Fourth Proportional to 456.09, 683.83 and 282.75

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Solution

The fourth proportional to 456.09, 683.83 and 282.75 is: 423.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.09 : 683.83 = 282.75 : x
  2. Step 2: Convert to fraction form
    456.09/683.83 = 282.75/x
  3. Step 3: Cross multiply
    456.09x = 683.83 × 282.75
  4. Step 4: Simplify right side
    456.09x = 193,352.93
  5. Step 5: Solve for x
    x = 193,352.93/456.09
  6. Step 6: Final answer
    x = 423.94

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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.