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Finding the Fourth Proportional to 618.63, 928.01 and 233.88

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Solution

The fourth proportional to 618.63, 928.01 and 233.88 is: 350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.63 : 928.01 = 233.88 : x
  2. Step 2: Convert to fraction form
    618.63/928.01 = 233.88/x
  3. Step 3: Cross multiply
    618.63x = 928.01 × 233.88
  4. Step 4: Simplify right side
    618.63x = 217,042.98
  5. Step 5: Solve for x
    x = 217,042.98/618.63
  6. Step 6: Final answer
    x = 350.84

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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.