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Finding the Fourth Proportional to 578.77, 868.15 and 232.19

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Solution

The fourth proportional to 578.77, 868.15 and 232.19 is: 348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.77 : 868.15 = 232.19 : x
  2. Step 2: Convert to fraction form
    578.77/868.15 = 232.19/x
  3. Step 3: Cross multiply
    578.77x = 868.15 × 232.19
  4. Step 4: Simplify right side
    578.77x = 201,575.75
  5. Step 5: Solve for x
    x = 201,575.75/578.77
  6. Step 6: Final answer
    x = 348.28

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Double scale
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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.