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Finding the Fourth Proportional to 187.89, 259.59 and 146.04

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Solution

The fourth proportional to 187.89, 259.59 and 146.04 is: 201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.89 : 259.59 = 146.04 : x
  2. Step 2: Convert to fraction form
    187.89/259.59 = 146.04/x
  3. Step 3: Cross multiply
    187.89x = 259.59 × 146.04
  4. Step 4: Simplify right side
    187.89x = 37,910.52
  5. Step 5: Solve for x
    x = 37,910.52/187.89
  6. Step 6: Final answer
    x = 201.78

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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.