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Finding the Fourth Proportional to 835.82, 1,253.69 and 250.79

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Solution

The fourth proportional to 835.82, 1,253.69 and 250.79 is: 376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.82 : 1,253.69 = 250.79 : x
  2. Step 2: Convert to fraction form
    835.82/1,253.69 = 250.79/x
  3. Step 3: Cross multiply
    835.82x = 1,253.69 × 250.79
  4. Step 4: Simplify right side
    835.82x = 314,411.66
  5. Step 5: Solve for x
    x = 314,411.66/835.82
  6. Step 6: Final answer
    x = 376.17

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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.