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Finding the Fourth Proportional to 382.86, 528.26 and 250.07

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Solution

The fourth proportional to 382.86, 528.26 and 250.07 is: 345.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.86 : 528.26 = 250.07 : x
  2. Step 2: Convert to fraction form
    382.86/528.26 = 250.07/x
  3. Step 3: Cross multiply
    382.86x = 528.26 × 250.07
  4. Step 4: Simplify right side
    382.86x = 132,099.34
  5. Step 5: Solve for x
    x = 132,099.34/382.86
  6. Step 6: Final answer
    x = 345.03

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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.