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Finding the Fourth Proportional to 366,620.56, 505,935.69 and 205,475.56

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Solution

The fourth proportional to 366,620.56, 505,935.69 and 205,475.56 is: 283,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,620.56 : 505,935.69 = 205,475.56 : x
  2. Step 2: Convert to fraction form
    366,620.56/505,935.69 = 205,475.56/x
  3. Step 3: Cross multiply
    366,620.56x = 505,935.69 × 205,475.56
  4. Step 4: Simplify right side
    366,620.56x = 103,957,419,226.74
  5. Step 5: Solve for x
    x = 103,957,419,226.74/366,620.56
  6. Step 6: Final answer
    x = 283,555.89

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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.