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Finding the Fourth Proportional to 159,315.20, 238,627.20 and 131,667.20

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Solution

The fourth proportional to 159,315.20, 238,627.20 and 131,667.20 is: 197,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,315.20 : 238,627.20 = 131,667.20 : x
  2. Step 2: Convert to fraction form
    159,315.20/238,627.20 = 131,667.20/x
  3. Step 3: Cross multiply
    159,315.20x = 238,627.20 × 131,667.20
  4. Step 4: Simplify right side
    159,315.20x = 31,419,375,267.84
  5. Step 5: Solve for x
    x = 31,419,375,267.84/159,315.20
  6. Step 6: Final answer
    x = 197,215.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.