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Finding the Fourth Proportional to 587.21, 880.82 and 235.77

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Solution

The fourth proportional to 587.21, 880.82 and 235.77 is: 353.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.21 : 880.82 = 235.77 : x
  2. Step 2: Convert to fraction form
    587.21/880.82 = 235.77/x
  3. Step 3: Cross multiply
    587.21x = 880.82 × 235.77
  4. Step 4: Simplify right side
    587.21x = 207,669.75
  5. Step 5: Solve for x
    x = 207,669.75/587.21
  6. Step 6: Final answer
    x = 353.66

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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.