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Finding the Fourth Proportional to 247.29, 370.94 and 239.77

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Solution

The fourth proportional to 247.29, 370.94 and 239.77 is: 359.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.29 : 370.94 = 239.77 : x
  2. Step 2: Convert to fraction form
    247.29/370.94 = 239.77/x
  3. Step 3: Cross multiply
    247.29x = 370.94 × 239.77
  4. Step 4: Simplify right side
    247.29x = 88,940.90
  5. Step 5: Solve for x
    x = 88,940.90/247.29
  6. Step 6: Final answer
    x = 359.66

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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.