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Finding the Fourth Proportional to 253,361.40, 380,020.23 and 75,908.22

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Solution

The fourth proportional to 253,361.40, 380,020.23 and 75,908.22 is: 113,855.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,361.40 : 380,020.23 = 75,908.22 : x
  2. Step 2: Convert to fraction form
    253,361.40/380,020.23 = 75,908.22/x
  3. Step 3: Cross multiply
    253,361.40x = 380,020.23 × 75,908.22
  4. Step 4: Simplify right side
    253,361.40x = 28,846,659,223.29
  5. Step 5: Solve for x
    x = 28,846,659,223.29/253,361.40
  6. Step 6: Final answer
    x = 113,855.78

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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.