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Finding the Fourth Proportional to 522.43, 721.03 and 301.45

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Solution

The fourth proportional to 522.43, 721.03 and 301.45 is: 416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.43 : 721.03 = 301.45 : x
  2. Step 2: Convert to fraction form
    522.43/721.03 = 301.45/x
  3. Step 3: Cross multiply
    522.43x = 721.03 × 301.45
  4. Step 4: Simplify right side
    522.43x = 217,353.07
  5. Step 5: Solve for x
    x = 217,353.07/522.43
  6. Step 6: Final answer
    x = 416.04

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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.