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Finding the Fourth Proportional to 522.43, 720.47 and 335.59

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Solution

The fourth proportional to 522.43, 720.47 and 335.59 is: 462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.43 : 720.47 = 335.59 : x
  2. Step 2: Convert to fraction form
    522.43/720.47 = 335.59/x
  3. Step 3: Cross multiply
    522.43x = 720.47 × 335.59
  4. Step 4: Simplify right side
    522.43x = 241,782.53
  5. Step 5: Solve for x
    x = 241,782.53/522.43
  6. Step 6: Final answer
    x = 462.80

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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.