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Finding the Fourth Proportional to 387.51, 582.17 and 250.83

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Solution

The fourth proportional to 387.51, 582.17 and 250.83 is: 376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.51 : 582.17 = 250.83 : x
  2. Step 2: Convert to fraction form
    387.51/582.17 = 250.83/x
  3. Step 3: Cross multiply
    387.51x = 582.17 × 250.83
  4. Step 4: Simplify right side
    387.51x = 146,025.70
  5. Step 5: Solve for x
    x = 146,025.70/387.51
  6. Step 6: Final answer
    x = 376.83

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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.