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Finding the Fourth Proportional to 533.36, 736.12 and 300.56

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Solution

The fourth proportional to 533.36, 736.12 and 300.56 is: 414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.36 : 736.12 = 300.56 : x
  2. Step 2: Convert to fraction form
    533.36/736.12 = 300.56/x
  3. Step 3: Cross multiply
    533.36x = 736.12 × 300.56
  4. Step 4: Simplify right side
    533.36x = 221,248.23
  5. Step 5: Solve for x
    x = 221,248.23/533.36
  6. Step 6: Final answer
    x = 414.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.