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Finding the Fourth Proportional to 188.91, 259.76 and 183.15

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Solution

The fourth proportional to 188.91, 259.76 and 183.15 is: 251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.91 : 259.76 = 183.15 : x
  2. Step 2: Convert to fraction form
    188.91/259.76 = 183.15/x
  3. Step 3: Cross multiply
    188.91x = 259.76 × 183.15
  4. Step 4: Simplify right side
    188.91x = 47,575.50
  5. Step 5: Solve for x
    x = 47,575.50/188.91
  6. Step 6: Final answer
    x = 251.84

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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.