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Finding the Fourth Proportional to 533.42, 800.17 and 143.48

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Solution

The fourth proportional to 533.42, 800.17 and 143.48 is: 215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.42 : 800.17 = 143.48 : x
  2. Step 2: Convert to fraction form
    533.42/800.17 = 143.48/x
  3. Step 3: Cross multiply
    533.42x = 800.17 × 143.48
  4. Step 4: Simplify right side
    533.42x = 114,804.03
  5. Step 5: Solve for x
    x = 114,804.03/533.42
  6. Step 6: Final answer
    x = 215.22

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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.