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Finding the Third Proportional to 387.56 and 606.94

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Solution

The third proportional to 387.56 and 606.94 is: 950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.56 : 606.94 = 606.94 : x
  2. Step 2: Convert to fraction form
    387.56/606.94 = 606.94/x
  3. Step 3: Cross multiply
    387.56x = 606.94 × 606.94
  4. Step 4: Simplify right side
    387.56x = 368,373.13
  5. Step 5: Solve for x
    x = 368,373.13/387.56
  6. Step 6: Final answer
    x = 950.49

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.