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Finding the Fourth Proportional to 219,122.40, 327,992.40 and 156,914.40

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Solution

The fourth proportional to 219,122.40, 327,992.40 and 156,914.40 is: 234,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,122.40 : 327,992.40 = 156,914.40 : x
  2. Step 2: Convert to fraction form
    219,122.40/327,992.40 = 156,914.40/x
  3. Step 3: Cross multiply
    219,122.40x = 327,992.40 × 156,914.40
  4. Step 4: Simplify right side
    219,122.40x = 51,466,730,650.56
  5. Step 5: Solve for x
    x = 51,466,730,650.56/219,122.40
  6. Step 6: Final answer
    x = 234,876.63

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1.5x scale

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.