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Finding the Third Proportional to 347.94 and 555.38

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Solution

The third proportional to 347.94 and 555.38 is: 886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.94 : 555.38 = 555.38 : x
  2. Step 2: Convert to fraction form
    347.94/555.38 = 555.38/x
  3. Step 3: Cross multiply
    347.94x = 555.38 × 555.38
  4. Step 4: Simplify right side
    347.94x = 308,441.39
  5. Step 5: Solve for x
    x = 308,441.39/347.94
  6. Step 6: Final answer
    x = 886.49

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.