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Finding the Fourth Proportional to 382.30, 527.53 and 235.02

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Solution

The fourth proportional to 382.30, 527.53 and 235.02 is: 324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.30 : 527.53 = 235.02 : x
  2. Step 2: Convert to fraction form
    382.30/527.53 = 235.02/x
  3. Step 3: Cross multiply
    382.30x = 527.53 × 235.02
  4. Step 4: Simplify right side
    382.30x = 123,980.10
  5. Step 5: Solve for x
    x = 123,980.10/382.30
  6. Step 6: Final answer
    x = 324.30

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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.