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Finding the Fourth Proportional to 528.34, 791.67 and 354.37

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Solution

The fourth proportional to 528.34, 791.67 and 354.37 is: 530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.34 : 791.67 = 354.37 : x
  2. Step 2: Convert to fraction form
    528.34/791.67 = 354.37/x
  3. Step 3: Cross multiply
    528.34x = 791.67 × 354.37
  4. Step 4: Simplify right side
    528.34x = 280,540.35
  5. Step 5: Solve for x
    x = 280,540.35/528.34
  6. Step 6: Final answer
    x = 530.98

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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.