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Finding the Fourth Proportional to 237.70, 327.78 and 187.83

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Solution

The fourth proportional to 237.70, 327.78 and 187.83 is: 259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.70 : 327.78 = 187.83 : x
  2. Step 2: Convert to fraction form
    237.70/327.78 = 187.83/x
  3. Step 3: Cross multiply
    237.70x = 327.78 × 187.83
  4. Step 4: Simplify right side
    237.70x = 61,566.92
  5. Step 5: Solve for x
    x = 61,566.92/237.70
  6. Step 6: Final answer
    x = 259.01

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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.