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Finding the Fourth Proportional to 835.39, 1,253.26 and 250.43

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Solution

The fourth proportional to 835.39, 1,253.26 and 250.43 is: 375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.39 : 1,253.26 = 250.43 : x
  2. Step 2: Convert to fraction form
    835.39/1,253.26 = 250.43/x
  3. Step 3: Cross multiply
    835.39x = 1,253.26 × 250.43
  4. Step 4: Simplify right side
    835.39x = 313,852.65
  5. Step 5: Solve for x
    x = 313,852.65/835.39
  6. Step 6: Final answer
    x = 375.70

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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.