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Finding the Fourth Proportional to 887.59, 1,331.39 and 262.95

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Solution

The fourth proportional to 887.59, 1,331.39 and 262.95 is: 394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.59 : 1,331.39 = 262.95 : x
  2. Step 2: Convert to fraction form
    887.59/1,331.39 = 262.95/x
  3. Step 3: Cross multiply
    887.59x = 1,331.39 × 262.95
  4. Step 4: Simplify right side
    887.59x = 350,089.00
  5. Step 5: Solve for x
    x = 350,089.00/887.59
  6. Step 6: Final answer
    x = 394.43

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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.