Home / 100,408.88-150,617.27-30,288.20

Finding the Fourth Proportional to 100,408.88, 150,617.27 and 30,288.20

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Solution

The fourth proportional to 100,408.88, 150,617.27 and 30,288.20 is: 45,433.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,408.88 : 150,617.27 = 30,288.20 : x
  2. Step 2: Convert to fraction form
    100,408.88/150,617.27 = 30,288.20/x
  3. Step 3: Cross multiply
    100,408.88x = 150,617.27 × 30,288.20
  4. Step 4: Simplify right side
    100,408.88x = 4,561,925,319.85
  5. Step 5: Solve for x
    x = 4,561,925,319.85/100,408.88
  6. Step 6: Final answer
    x = 45,433.48

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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.