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Finding the Fourth Proportional to 618.35, 926.70 and 227.99

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Solution

The fourth proportional to 618.35, 926.70 and 227.99 is: 341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.35 : 926.70 = 227.99 : x
  2. Step 2: Convert to fraction form
    618.35/926.70 = 227.99/x
  3. Step 3: Cross multiply
    618.35x = 926.70 × 227.99
  4. Step 4: Simplify right side
    618.35x = 211,278.33
  5. Step 5: Solve for x
    x = 211,278.33/618.35
  6. Step 6: Final answer
    x = 341.68

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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.