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Finding the Fourth Proportional to 425.96, 635.23 and 402.92

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Solution

The fourth proportional to 425.96, 635.23 and 402.92 is: 600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.96 : 635.23 = 402.92 : x
  2. Step 2: Convert to fraction form
    425.96/635.23 = 402.92/x
  3. Step 3: Cross multiply
    425.96x = 635.23 × 402.92
  4. Step 4: Simplify right side
    425.96x = 255,946.87
  5. Step 5: Solve for x
    x = 255,946.87/425.96
  6. Step 6: Final answer
    x = 600.87

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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.