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Finding the Third Proportional to 392.91 and 599.06

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Solution

The third proportional to 392.91 and 599.06 is: 913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.91 : 599.06 = 599.06 : x
  2. Step 2: Convert to fraction form
    392.91/599.06 = 599.06/x
  3. Step 3: Cross multiply
    392.91x = 599.06 × 599.06
  4. Step 4: Simplify right side
    392.91x = 358,875.88
  5. Step 5: Solve for x
    x = 358,875.88/392.91
  6. Step 6: Final answer
    x = 913.39

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.