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Finding the Third Proportional to 142,920 and 226,512

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Solution

The third proportional to 142,920 and 226,512 is: 358,995.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,920 : 226,512 = 226,512 : x
  2. Step 2: Convert to fraction form
    142,920/226,512 = 226,512/x
  3. Step 3: Cross multiply
    142,920x = 226,512 × 226,512
  4. Step 4: Simplify right side
    142,920x = 51,307,686,144
  5. Step 5: Solve for x
    x = 51,307,686,144/142,920
  6. Step 6: Final answer
    x = 358,995.84

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.