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Finding the Fourth Proportional to 247,879.32, 371,816.01 and 90,106.44

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Solution

The fourth proportional to 247,879.32, 371,816.01 and 90,106.44 is: 135,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,879.32 : 371,816.01 = 90,106.44 : x
  2. Step 2: Convert to fraction form
    247,879.32/371,816.01 = 90,106.44/x
  3. Step 3: Cross multiply
    247,879.32x = 371,816.01 × 90,106.44
  4. Step 4: Simplify right side
    247,879.32x = 33,503,016,996.10
  5. Step 5: Solve for x
    x = 33,503,016,996.10/247,879.32
  6. Step 6: Final answer
    x = 135,158.58

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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.