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Finding the Fourth Proportional to 425.72, 635.23 and 377.12

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Solution

The fourth proportional to 425.72, 635.23 and 377.12 is: 562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.72 : 635.23 = 377.12 : x
  2. Step 2: Convert to fraction form
    425.72/635.23 = 377.12/x
  3. Step 3: Cross multiply
    425.72x = 635.23 × 377.12
  4. Step 4: Simplify right side
    425.72x = 239,557.94
  5. Step 5: Solve for x
    x = 239,557.94/425.72
  6. Step 6: Final answer
    x = 562.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.