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Finding the Fourth Proportional to 1,102.77, 1,653.89 and 333.27

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Solution

The fourth proportional to 1,102.77, 1,653.89 and 333.27 is: 499.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.77 : 1,653.89 = 333.27 : x
  2. Step 2: Convert to fraction form
    1,102.77/1,653.89 = 333.27/x
  3. Step 3: Cross multiply
    1,102.77x = 1,653.89 × 333.27
  4. Step 4: Simplify right side
    1,102.77x = 551,190.25
  5. Step 5: Solve for x
    x = 551,190.25/1,102.77
  6. Step 6: Final answer
    x = 499.82

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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.