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Finding the Fourth Proportional to 240.05, 359.48 and 188.98

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Solution

The fourth proportional to 240.05, 359.48 and 188.98 is: 282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.05 : 359.48 = 188.98 : x
  2. Step 2: Convert to fraction form
    240.05/359.48 = 188.98/x
  3. Step 3: Cross multiply
    240.05x = 359.48 × 188.98
  4. Step 4: Simplify right side
    240.05x = 67,932.69
  5. Step 5: Solve for x
    x = 67,932.69/240.05
  6. Step 6: Final answer
    x = 282.99

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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.