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Finding the Third Proportional to 425.38 and 603.94

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Solution

The third proportional to 425.38 and 603.94 is: 857.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.38 : 603.94 = 603.94 : x
  2. Step 2: Convert to fraction form
    425.38/603.94 = 603.94/x
  3. Step 3: Cross multiply
    425.38x = 603.94 × 603.94
  4. Step 4: Simplify right side
    425.38x = 364,740.50
  5. Step 5: Solve for x
    x = 364,740.50/425.38
  6. Step 6: Final answer
    x = 857.46

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.