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Finding the Fourth Proportional to 522.73, 721.54 and 336.57

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Solution

The fourth proportional to 522.73, 721.54 and 336.57 is: 464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.73 : 721.54 = 336.57 : x
  2. Step 2: Convert to fraction form
    522.73/721.54 = 336.57/x
  3. Step 3: Cross multiply
    522.73x = 721.54 × 336.57
  4. Step 4: Simplify right side
    522.73x = 242,848.72
  5. Step 5: Solve for x
    x = 242,848.72/522.73
  6. Step 6: Final answer
    x = 464.58

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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.