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Finding the Fourth Proportional to 375.77, 563.36 and 238.79

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Solution

The fourth proportional to 375.77, 563.36 and 238.79 is: 357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.77 : 563.36 = 238.79 : x
  2. Step 2: Convert to fraction form
    375.77/563.36 = 238.79/x
  3. Step 3: Cross multiply
    375.77x = 563.36 × 238.79
  4. Step 4: Simplify right side
    375.77x = 134,520.72
  5. Step 5: Solve for x
    x = 134,520.72/375.77
  6. Step 6: Final answer
    x = 357.99

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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.