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Finding the Third Proportional to 146.53 and 312.47

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Solution

The third proportional to 146.53 and 312.47 is: 666.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.53 : 312.47 = 312.47 : x
  2. Step 2: Convert to fraction form
    146.53/312.47 = 312.47/x
  3. Step 3: Cross multiply
    146.53x = 312.47 × 312.47
  4. Step 4: Simplify right side
    146.53x = 97,636.72
  5. Step 5: Solve for x
    x = 97,636.72/146.53
  6. Step 6: Final answer
    x = 666.32

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.