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Finding the Fourth Proportional to 247.77, 370.11 and 223.35

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Solution

The fourth proportional to 247.77, 370.11 and 223.35 is: 333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.77 : 370.11 = 223.35 : x
  2. Step 2: Convert to fraction form
    247.77/370.11 = 223.35/x
  3. Step 3: Cross multiply
    247.77x = 370.11 × 223.35
  4. Step 4: Simplify right side
    247.77x = 82,664.07
  5. Step 5: Solve for x
    x = 82,664.07/247.77
  6. Step 6: Final answer
    x = 333.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.