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Finding the Fourth Proportional to 611.83, 917.94 and 246.43

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Solution

The fourth proportional to 611.83, 917.94 and 246.43 is: 369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.83 : 917.94 = 246.43 : x
  2. Step 2: Convert to fraction form
    611.83/917.94 = 246.43/x
  3. Step 3: Cross multiply
    611.83x = 917.94 × 246.43
  4. Step 4: Simplify right side
    611.83x = 226,203.36
  5. Step 5: Solve for x
    x = 226,203.36/611.83
  6. Step 6: Final answer
    x = 369.72

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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.