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Finding the Fourth Proportional to 437.34, 603.07 and 326.63

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Solution

The fourth proportional to 437.34, 603.07 and 326.63 is: 450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.34 : 603.07 = 326.63 : x
  2. Step 2: Convert to fraction form
    437.34/603.07 = 326.63/x
  3. Step 3: Cross multiply
    437.34x = 603.07 × 326.63
  4. Step 4: Simplify right side
    437.34x = 196,976.92
  5. Step 5: Solve for x
    x = 196,976.92/437.34
  6. Step 6: Final answer
    x = 450.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.