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Finding the Fourth Proportional to 533.16, 798.66 and 243.72

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Solution

The fourth proportional to 533.16, 798.66 and 243.72 is: 365.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.16 : 798.66 = 243.72 : x
  2. Step 2: Convert to fraction form
    533.16/798.66 = 243.72/x
  3. Step 3: Cross multiply
    533.16x = 798.66 × 243.72
  4. Step 4: Simplify right side
    533.16x = 194,649.42
  5. Step 5: Solve for x
    x = 194,649.42/533.16
  6. Step 6: Final answer
    x = 365.09

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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.