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Finding the Fourth Proportional to 235,238, 324,628.44 and 129,254

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Solution

The fourth proportional to 235,238, 324,628.44 and 129,254 is: 178,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,238 : 324,628.44 = 129,254 : x
  2. Step 2: Convert to fraction form
    235,238/324,628.44 = 129,254/x
  3. Step 3: Cross multiply
    235,238x = 324,628.44 × 129,254
  4. Step 4: Simplify right side
    235,238x = 41,959,524,383.76
  5. Step 5: Solve for x
    x = 41,959,524,383.76/235,238
  6. Step 6: Final answer
    x = 178,370.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.