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Finding the Fourth Proportional to 503.40, 755.25 and 375.09

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Solution

The fourth proportional to 503.40, 755.25 and 375.09 is: 562.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.40 : 755.25 = 375.09 : x
  2. Step 2: Convert to fraction form
    503.40/755.25 = 375.09/x
  3. Step 3: Cross multiply
    503.40x = 755.25 × 375.09
  4. Step 4: Simplify right side
    503.40x = 283,286.72
  5. Step 5: Solve for x
    x = 283,286.72/503.40
  6. Step 6: Final answer
    x = 562.75

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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.