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Finding the Fourth Proportional to 100,388.16, 150,583.15 and 32,919.21

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Solution

The fourth proportional to 100,388.16, 150,583.15 and 32,919.21 is: 49,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,388.16 : 150,583.15 = 32,919.21 : x
  2. Step 2: Convert to fraction form
    100,388.16/150,583.15 = 32,919.21/x
  3. Step 3: Cross multiply
    100,388.16x = 150,583.15 × 32,919.21
  4. Step 4: Simplify right side
    100,388.16x = 4,957,078,378.46
  5. Step 5: Solve for x
    x = 4,957,078,378.46/100,388.16
  6. Step 6: Final answer
    x = 49,379.11

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1.5x scale

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.