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Finding the Fourth Proportional to 253,976.32, 380,696.64 and 104,150.08

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Solution

The fourth proportional to 253,976.32, 380,696.64 and 104,150.08 is: 156,115.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,976.32 : 380,696.64 = 104,150.08 : x
  2. Step 2: Convert to fraction form
    253,976.32/380,696.64 = 104,150.08/x
  3. Step 3: Cross multiply
    253,976.32x = 380,696.64 × 104,150.08
  4. Step 4: Simplify right side
    253,976.32x = 39,649,585,511.73
  5. Step 5: Solve for x
    x = 39,649,585,511.73/253,976.32
  6. Step 6: Final answer
    x = 156,115.28

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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.