Home / 254,100.32-381,378.92-135,872.72

Finding the Fourth Proportional to 254,100.32, 381,378.92 and 135,872.72

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Solution

The fourth proportional to 254,100.32, 381,378.92 and 135,872.72 is: 203,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,100.32 : 381,378.92 = 135,872.72 : x
  2. Step 2: Convert to fraction form
    254,100.32/381,378.92 = 135,872.72/x
  3. Step 3: Cross multiply
    254,100.32x = 381,378.92 × 135,872.72
  4. Step 4: Simplify right side
    254,100.32x = 51,818,991,211.06
  5. Step 5: Solve for x
    x = 51,818,991,211.06/254,100.32
  6. Step 6: Final answer
    x = 203,931.23

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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.