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Finding the Fourth Proportional to 568.88, 853.72 and 325.20

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Solution

The fourth proportional to 568.88, 853.72 and 325.20 is: 488.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.88 : 853.72 = 325.20 : x
  2. Step 2: Convert to fraction form
    568.88/853.72 = 325.20/x
  3. Step 3: Cross multiply
    568.88x = 853.72 × 325.20
  4. Step 4: Simplify right side
    568.88x = 277,629.74
  5. Step 5: Solve for x
    x = 277,629.74/568.88
  6. Step 6: Final answer
    x = 488.03

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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.