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Finding the Fourth Proportional to 424.49, 634.91 and 364.37

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Solution

The fourth proportional to 424.49, 634.91 and 364.37 is: 544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.49 : 634.91 = 364.37 : x
  2. Step 2: Convert to fraction form
    424.49/634.91 = 364.37/x
  3. Step 3: Cross multiply
    424.49x = 634.91 × 364.37
  4. Step 4: Simplify right side
    424.49x = 231,337.16
  5. Step 5: Solve for x
    x = 231,337.16/424.49
  6. Step 6: Final answer
    x = 544.98

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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.