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Finding the Fourth Proportional to 100,366.30, 150,569.70 and 29,288.80

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Solution

The fourth proportional to 100,366.30, 150,569.70 and 29,288.80 is: 43,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,366.30 : 150,569.70 = 29,288.80 : x
  2. Step 2: Convert to fraction form
    100,366.30/150,569.70 = 29,288.80/x
  3. Step 3: Cross multiply
    100,366.30x = 150,569.70 × 29,288.80
  4. Step 4: Simplify right side
    100,366.30x = 4,410,005,829.36
  5. Step 5: Solve for x
    x = 4,410,005,829.36/100,366.30
  6. Step 6: Final answer
    x = 43,939.11

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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.