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Finding the Fourth Proportional to 375.23, 563.03 and 253.23

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Solution

The fourth proportional to 375.23, 563.03 and 253.23 is: 379.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.23 : 563.03 = 253.23 : x
  2. Step 2: Convert to fraction form
    375.23/563.03 = 253.23/x
  3. Step 3: Cross multiply
    375.23x = 563.03 × 253.23
  4. Step 4: Simplify right side
    375.23x = 142,575.08
  5. Step 5: Solve for x
    x = 142,575.08/375.23
  6. Step 6: Final answer
    x = 379.96

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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.