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Finding the Fourth Proportional to 259.94, 388.05 and 250.94

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Solution

The fourth proportional to 259.94, 388.05 and 250.94 is: 374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.94 : 388.05 = 250.94 : x
  2. Step 2: Convert to fraction form
    259.94/388.05 = 250.94/x
  3. Step 3: Cross multiply
    259.94x = 388.05 × 250.94
  4. Step 4: Simplify right side
    259.94x = 97,377.27
  5. Step 5: Solve for x
    x = 97,377.27/259.94
  6. Step 6: Final answer
    x = 374.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.