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Finding the Fourth Proportional to 504.44, 755.88 and 330.80

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Solution

The fourth proportional to 504.44, 755.88 and 330.80 is: 495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.44 : 755.88 = 330.80 : x
  2. Step 2: Convert to fraction form
    504.44/755.88 = 330.80/x
  3. Step 3: Cross multiply
    504.44x = 755.88 × 330.80
  4. Step 4: Simplify right side
    504.44x = 250,045.10
  5. Step 5: Solve for x
    x = 250,045.10/504.44
  6. Step 6: Final answer
    x = 495.69

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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.