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Finding the Fourth Proportional to 587.28, 880.58 and 197.20

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Solution

The fourth proportional to 587.28, 880.58 and 197.20 is: 295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.28 : 880.58 = 197.20 : x
  2. Step 2: Convert to fraction form
    587.28/880.58 = 197.20/x
  3. Step 3: Cross multiply
    587.28x = 880.58 × 197.20
  4. Step 4: Simplify right side
    587.28x = 173,645.97
  5. Step 5: Solve for x
    x = 173,645.97/587.28
  6. Step 6: Final answer
    x = 295.68

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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.