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Finding the Fourth Proportional to 154,159, 231,238.56 and 43,351

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Solution

The fourth proportional to 154,159, 231,238.56 and 43,351 is: 65,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,159 : 231,238.56 = 43,351 : x
  2. Step 2: Convert to fraction form
    154,159/231,238.56 = 43,351/x
  3. Step 3: Cross multiply
    154,159x = 231,238.56 × 43,351
  4. Step 4: Simplify right side
    154,159x = 10,024,422,814.56
  5. Step 5: Solve for x
    x = 10,024,422,814.56/154,159
  6. Step 6: Final answer
    x = 65,026.52

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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.