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Finding the Fourth Proportional to 608.34, 836.78 and 533.28

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Solution

The fourth proportional to 608.34, 836.78 and 533.28 is: 733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.34 : 836.78 = 533.28 : x
  2. Step 2: Convert to fraction form
    608.34/836.78 = 533.28/x
  3. Step 3: Cross multiply
    608.34x = 836.78 × 533.28
  4. Step 4: Simplify right side
    608.34x = 446,238.04
  5. Step 5: Solve for x
    x = 446,238.04/608.34
  6. Step 6: Final answer
    x = 733.53

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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.