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Finding the Fourth Proportional to 237.88, 355.86 and 189.88

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Solution

The fourth proportional to 237.88, 355.86 and 189.88 is: 284.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.88 : 355.86 = 189.88 : x
  2. Step 2: Convert to fraction form
    237.88/355.86 = 189.88/x
  3. Step 3: Cross multiply
    237.88x = 355.86 × 189.88
  4. Step 4: Simplify right side
    237.88x = 67,570.70
  5. Step 5: Solve for x
    x = 67,570.70/237.88
  6. Step 6: Final answer
    x = 284.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.