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Finding the Fourth Proportional to 618.72, 927.88 and 294.08

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Solution

The fourth proportional to 618.72, 927.88 and 294.08 is: 441.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.72 : 927.88 = 294.08 : x
  2. Step 2: Convert to fraction form
    618.72/927.88 = 294.08/x
  3. Step 3: Cross multiply
    618.72x = 927.88 × 294.08
  4. Step 4: Simplify right side
    618.72x = 272,870.95
  5. Step 5: Solve for x
    x = 272,870.95/618.72
  6. Step 6: Final answer
    x = 441.02

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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.