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Finding the Fourth Proportional to 219,382.43, 329,129.06 and 101,136.80

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Solution

The fourth proportional to 219,382.43, 329,129.06 and 101,136.80 is: 151,730.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,382.43 : 329,129.06 = 101,136.80 : x
  2. Step 2: Convert to fraction form
    219,382.43/329,129.06 = 101,136.80/x
  3. Step 3: Cross multiply
    219,382.43x = 329,129.06 × 101,136.80
  4. Step 4: Simplify right side
    219,382.43x = 33,287,060,232.55
  5. Step 5: Solve for x
    x = 33,287,060,232.55/219,382.43
  6. Step 6: Final answer
    x = 151,730.75

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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.