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Finding the Fourth Proportional to 376.36, 563.72 and 310.61

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Solution

The fourth proportional to 376.36, 563.72 and 310.61 is: 465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.36 : 563.72 = 310.61 : x
  2. Step 2: Convert to fraction form
    376.36/563.72 = 310.61/x
  3. Step 3: Cross multiply
    376.36x = 563.72 × 310.61
  4. Step 4: Simplify right side
    376.36x = 175,096.93
  5. Step 5: Solve for x
    x = 175,096.93/376.36
  6. Step 6: Final answer
    x = 465.24

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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.