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Finding the Third Proportional to 142,530 and 225,678

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Solution

The third proportional to 142,530 and 225,678 is: 357,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,530 : 225,678 = 225,678 : x
  2. Step 2: Convert to fraction form
    142,530/225,678 = 225,678/x
  3. Step 3: Cross multiply
    142,530x = 225,678 × 225,678
  4. Step 4: Simplify right side
    142,530x = 50,930,559,684
  5. Step 5: Solve for x
    x = 50,930,559,684/142,530
  6. Step 6: Final answer
    x = 357,332.21

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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.