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Finding the Fourth Proportional to 887.76, 1,330.86 and 367.43

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Solution

The fourth proportional to 887.76, 1,330.86 and 367.43 is: 550.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.76 : 1,330.86 = 367.43 : x
  2. Step 2: Convert to fraction form
    887.76/1,330.86 = 367.43/x
  3. Step 3: Cross multiply
    887.76x = 1,330.86 × 367.43
  4. Step 4: Simplify right side
    887.76x = 488,997.89
  5. Step 5: Solve for x
    x = 488,997.89/887.76
  6. Step 6: Final answer
    x = 550.82

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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.