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Finding the Fourth Proportional to 587.11, 880.91 and 262.25

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Solution

The fourth proportional to 587.11, 880.91 and 262.25 is: 393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.11 : 880.91 = 262.25 : x
  2. Step 2: Convert to fraction form
    587.11/880.91 = 262.25/x
  3. Step 3: Cross multiply
    587.11x = 880.91 × 262.25
  4. Step 4: Simplify right side
    587.11x = 231,017.34
  5. Step 5: Solve for x
    x = 231,017.34/587.11
  6. Step 6: Final answer
    x = 393.49

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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.