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Finding the Fourth Proportional to 382.91, 528.44 and 235.50

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Solution

The fourth proportional to 382.91, 528.44 and 235.50 is: 325.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.91 : 528.44 = 235.50 : x
  2. Step 2: Convert to fraction form
    382.91/528.44 = 235.50/x
  3. Step 3: Cross multiply
    382.91x = 528.44 × 235.50
  4. Step 4: Simplify right side
    382.91x = 124,447.62
  5. Step 5: Solve for x
    x = 124,447.62/382.91
  6. Step 6: Final answer
    x = 325.00

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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.