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Finding the Fourth Proportional to 399,183.08, 550,858.86 and 237,955

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Solution

The fourth proportional to 399,183.08, 550,858.86 and 237,955 is: 328,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,183.08 : 550,858.86 = 237,955 : x
  2. Step 2: Convert to fraction form
    399,183.08/550,858.86 = 237,955/x
  3. Step 3: Cross multiply
    399,183.08x = 550,858.86 × 237,955
  4. Step 4: Simplify right side
    399,183.08x = 131,079,620,031.30
  5. Step 5: Solve for x
    x = 131,079,620,031.30/399,183.08
  6. Step 6: Final answer
    x = 328,369.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.