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Finding the Fourth Proportional to 547.33, 820.92 and 157.32

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Solution

The fourth proportional to 547.33, 820.92 and 157.32 is: 235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.33 : 820.92 = 157.32 : x
  2. Step 2: Convert to fraction form
    547.33/820.92 = 157.32/x
  3. Step 3: Cross multiply
    547.33x = 820.92 × 157.32
  4. Step 4: Simplify right side
    547.33x = 129,147.13
  5. Step 5: Solve for x
    x = 129,147.13/547.33
  6. Step 6: Final answer
    x = 235.96

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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.