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Finding the Fourth Proportional to 587.61, 880.67 and 262.28

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Solution

The fourth proportional to 587.61, 880.67 and 262.28 is: 393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.61 : 880.67 = 262.28 : x
  2. Step 2: Convert to fraction form
    587.61/880.67 = 262.28/x
  3. Step 3: Cross multiply
    587.61x = 880.67 × 262.28
  4. Step 4: Simplify right side
    587.61x = 230,984.98
  5. Step 5: Solve for x
    x = 230,984.98/587.61
  6. Step 6: Final answer
    x = 393.09

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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.