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Finding the Third Proportional to 339.13 and 607.56

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Solution

The third proportional to 339.13 and 607.56 is: 1,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.13 : 607.56 = 607.56 : x
  2. Step 2: Convert to fraction form
    339.13/607.56 = 607.56/x
  3. Step 3: Cross multiply
    339.13x = 607.56 × 607.56
  4. Step 4: Simplify right side
    339.13x = 369,132.19
  5. Step 5: Solve for x
    x = 369,132.19/339.13
  6. Step 6: Final answer
    x = 1,088.48

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.