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Finding the Fourth Proportional to 100,361.40, 150,542.22 and 30,260.76

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Solution

The fourth proportional to 100,361.40, 150,542.22 and 30,260.76 is: 45,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,361.40 : 150,542.22 = 30,260.76 : x
  2. Step 2: Convert to fraction form
    100,361.40/150,542.22 = 30,260.76/x
  3. Step 3: Cross multiply
    100,361.40x = 150,542.22 × 30,260.76
  4. Step 4: Simplify right side
    100,361.40x = 4,555,521,989.29
  5. Step 5: Solve for x
    x = 4,555,521,989.29/100,361.40
  6. Step 6: Final answer
    x = 45,391.18

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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.