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Finding the Fourth Proportional to 193.75, 267.40 and 110.86

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Solution

The fourth proportional to 193.75, 267.40 and 110.86 is: 153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.75 : 267.40 = 110.86 : x
  2. Step 2: Convert to fraction form
    193.75/267.40 = 110.86/x
  3. Step 3: Cross multiply
    193.75x = 267.40 × 110.86
  4. Step 4: Simplify right side
    193.75x = 29,643.96
  5. Step 5: Solve for x
    x = 29,643.96/193.75
  6. Step 6: Final answer
    x = 153.00

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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.