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Finding the Fourth Proportional to 587.36, 879.96 and 330.32

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Solution

The fourth proportional to 587.36, 879.96 and 330.32 is: 494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.36 : 879.96 = 330.32 : x
  2. Step 2: Convert to fraction form
    587.36/879.96 = 330.32/x
  3. Step 3: Cross multiply
    587.36x = 879.96 × 330.32
  4. Step 4: Simplify right side
    587.36x = 290,668.39
  5. Step 5: Solve for x
    x = 290,668.39/587.36
  6. Step 6: Final answer
    x = 494.87

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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.