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Finding the Fourth Proportional to 425.46, 635.06 and 376.20

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Solution

The fourth proportional to 425.46, 635.06 and 376.20 is: 561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.46 : 635.06 = 376.20 : x
  2. Step 2: Convert to fraction form
    425.46/635.06 = 376.20/x
  3. Step 3: Cross multiply
    425.46x = 635.06 × 376.20
  4. Step 4: Simplify right side
    425.46x = 238,909.57
  5. Step 5: Solve for x
    x = 238,909.57/425.46
  6. Step 6: Final answer
    x = 561.53

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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.