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Finding the Fourth Proportional to 254,093.32, 381,368.42 and 135,865.72

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Solution

The fourth proportional to 254,093.32, 381,368.42 and 135,865.72 is: 203,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,093.32 : 381,368.42 = 135,865.72 : x
  2. Step 2: Convert to fraction form
    254,093.32/381,368.42 = 135,865.72/x
  3. Step 3: Cross multiply
    254,093.32x = 381,368.42 × 135,865.72
  4. Step 4: Simplify right side
    254,093.32x = 51,814,894,968.56
  5. Step 5: Solve for x
    x = 51,814,894,968.56/254,093.32
  6. Step 6: Final answer
    x = 203,920.73

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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.