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Finding the Fourth Proportional to 568.21, 852.31 and 157.35

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Solution

The fourth proportional to 568.21, 852.31 and 157.35 is: 236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.21 : 852.31 = 157.35 : x
  2. Step 2: Convert to fraction form
    568.21/852.31 = 157.35/x
  3. Step 3: Cross multiply
    568.21x = 852.31 × 157.35
  4. Step 4: Simplify right side
    568.21x = 134,107.98
  5. Step 5: Solve for x
    x = 134,107.98/568.21
  6. Step 6: Final answer
    x = 236.02

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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.