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Finding the Fourth Proportional to 612.11, 918.34 and 246.92

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Solution

The fourth proportional to 612.11, 918.34 and 246.92 is: 370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.11 : 918.34 = 246.92 : x
  2. Step 2: Convert to fraction form
    612.11/918.34 = 246.92/x
  3. Step 3: Cross multiply
    612.11x = 918.34 × 246.92
  4. Step 4: Simplify right side
    612.11x = 226,751.30
  5. Step 5: Solve for x
    x = 226,751.30/612.11
  6. Step 6: Final answer
    x = 370.44

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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.