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Finding the Fourth Proportional to 425.82, 637.53 and 353.94

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Solution

The fourth proportional to 425.82, 637.53 and 353.94 is: 529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.82 : 637.53 = 353.94 : x
  2. Step 2: Convert to fraction form
    425.82/637.53 = 353.94/x
  3. Step 3: Cross multiply
    425.82x = 637.53 × 353.94
  4. Step 4: Simplify right side
    425.82x = 225,647.37
  5. Step 5: Solve for x
    x = 225,647.37/425.82
  6. Step 6: Final answer
    x = 529.91

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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.