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Finding the Fourth Proportional to 521.97, 720.00 and 344.93

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Solution

The fourth proportional to 521.97, 720.00 and 344.93 is: 475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.97 : 720.00 = 344.93 : x
  2. Step 2: Convert to fraction form
    521.97/720.00 = 344.93/x
  3. Step 3: Cross multiply
    521.97x = 720.00 × 344.93
  4. Step 4: Simplify right side
    521.97x = 248,349.17
  5. Step 5: Solve for x
    x = 248,349.17/521.97
  6. Step 6: Final answer
    x = 475.79

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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.