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Finding the Fourth Proportional to 150,614.64, 207,832.77 and 90,183.78

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Solution

The fourth proportional to 150,614.64, 207,832.77 and 90,183.78 is: 124,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,614.64 : 207,832.77 = 90,183.78 : x
  2. Step 2: Convert to fraction form
    150,614.64/207,832.77 = 90,183.78/x
  3. Step 3: Cross multiply
    150,614.64x = 207,832.77 × 90,183.78
  4. Step 4: Simplify right side
    150,614.64x = 18,743,144,806.47
  5. Step 5: Solve for x
    x = 18,743,144,806.47/150,614.64
  6. Step 6: Final answer
    x = 124,444.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.