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Finding the Fourth Proportional to 575.94, 864.41 and 381.54

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Solution

The fourth proportional to 575.94, 864.41 and 381.54 is: 572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.94 : 864.41 = 381.54 : x
  2. Step 2: Convert to fraction form
    575.94/864.41 = 381.54/x
  3. Step 3: Cross multiply
    575.94x = 864.41 × 381.54
  4. Step 4: Simplify right side
    575.94x = 329,805.08
  5. Step 5: Solve for x
    x = 329,805.08/575.94
  6. Step 6: Final answer
    x = 572.64

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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.