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Finding the Fourth Proportional to 376.09, 563.92 and 156.53

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Solution

The fourth proportional to 376.09, 563.92 and 156.53 is: 234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.09 : 563.92 = 156.53 : x
  2. Step 2: Convert to fraction form
    376.09/563.92 = 156.53/x
  3. Step 3: Cross multiply
    376.09x = 563.92 × 156.53
  4. Step 4: Simplify right side
    376.09x = 88,268.21
  5. Step 5: Solve for x
    x = 88,268.21/376.09
  6. Step 6: Final answer
    x = 234.70

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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.