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Finding the Fourth Proportional to 219,060.62, 328,449.62 and 85,954.32

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Solution

The fourth proportional to 219,060.62, 328,449.62 and 85,954.32 is: 128,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,060.62 : 328,449.62 = 85,954.32 : x
  2. Step 2: Convert to fraction form
    219,060.62/328,449.62 = 85,954.32/x
  3. Step 3: Cross multiply
    219,060.62x = 328,449.62 × 85,954.32
  4. Step 4: Simplify right side
    219,060.62x = 28,231,663,311.59
  5. Step 5: Solve for x
    x = 28,231,663,311.59/219,060.62
  6. Step 6: Final answer
    x = 128,876.03

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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.