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Finding the Third Proportional to 157.31 and 228.94

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Solution

The third proportional to 157.31 and 228.94 is: 333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157.31 : 228.94 = 228.94 : x
  2. Step 2: Convert to fraction form
    157.31/228.94 = 228.94/x
  3. Step 3: Cross multiply
    157.31x = 228.94 × 228.94
  4. Step 4: Simplify right side
    157.31x = 52,412.38
  5. Step 5: Solve for x
    x = 52,412.38/157.31
  6. Step 6: Final answer
    x = 333.17

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.