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Finding the Fourth Proportional to 512.00, 706.44 and 354.37

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Solution

The fourth proportional to 512.00, 706.44 and 354.37 is: 488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.00 : 706.44 = 354.37 : x
  2. Step 2: Convert to fraction form
    512.00/706.44 = 354.37/x
  3. Step 3: Cross multiply
    512.00x = 706.44 × 354.37
  4. Step 4: Simplify right side
    512.00x = 250,339.37
  5. Step 5: Solve for x
    x = 250,339.37/512.00
  6. Step 6: Final answer
    x = 488.95

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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.