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Finding the Fourth Proportional to 375.18, 563.12 and 192.71

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Solution

The fourth proportional to 375.18, 563.12 and 192.71 is: 289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.18 : 563.12 = 192.71 : x
  2. Step 2: Convert to fraction form
    375.18/563.12 = 192.71/x
  3. Step 3: Cross multiply
    375.18x = 563.12 × 192.71
  4. Step 4: Simplify right side
    375.18x = 108,518.86
  5. Step 5: Solve for x
    x = 108,518.86/375.18
  6. Step 6: Final answer
    x = 289.24

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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.