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Finding the Fourth Proportional to 157.60, 217.52 and 110.94

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Solution

The fourth proportional to 157.60, 217.52 and 110.94 is: 153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.60 : 217.52 = 110.94 : x
  2. Step 2: Convert to fraction form
    157.60/217.52 = 110.94/x
  3. Step 3: Cross multiply
    157.60x = 217.52 × 110.94
  4. Step 4: Simplify right side
    157.60x = 24,131.67
  5. Step 5: Solve for x
    x = 24,131.67/157.60
  6. Step 6: Final answer
    x = 153.12

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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.