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Finding the Fourth Proportional to 461,187.75, 636,439.11 and 259,983.75

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Solution

The fourth proportional to 461,187.75, 636,439.11 and 259,983.75 is: 358,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,187.75 : 636,439.11 = 259,983.75 : x
  2. Step 2: Convert to fraction form
    461,187.75/636,439.11 = 259,983.75/x
  3. Step 3: Cross multiply
    461,187.75x = 636,439.11 × 259,983.75
  4. Step 4: Simplify right side
    461,187.75x = 165,463,826,464.46
  5. Step 5: Solve for x
    x = 165,463,826,464.46/461,187.75
  6. Step 6: Final answer
    x = 358,777.58

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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.