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Finding the Fourth Proportional to 154,600.56, 231,893.01 and 90,594.90

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Solution

The fourth proportional to 154,600.56, 231,893.01 and 90,594.90 is: 135,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,600.56 : 231,893.01 = 90,594.90 : x
  2. Step 2: Convert to fraction form
    154,600.56/231,893.01 = 90,594.90/x
  3. Step 3: Cross multiply
    154,600.56x = 231,893.01 × 90,594.90
  4. Step 4: Simplify right side
    154,600.56x = 21,008,324,051.65
  5. Step 5: Solve for x
    x = 21,008,324,051.65/154,600.56
  6. Step 6: Final answer
    x = 135,887.76

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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.