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Finding the Fourth Proportional to 305,447.88, 458,173.34 and 125,631.37

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Solution

The fourth proportional to 305,447.88, 458,173.34 and 125,631.37 is: 188,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,447.88 : 458,173.34 = 125,631.37 : x
  2. Step 2: Convert to fraction form
    305,447.88/458,173.34 = 125,631.37/x
  3. Step 3: Cross multiply
    305,447.88x = 458,173.34 × 125,631.37
  4. Step 4: Simplify right side
    305,447.88x = 57,560,944,401.68
  5. Step 5: Solve for x
    x = 57,560,944,401.68/305,447.88
  6. Step 6: Final answer
    x = 188,447.68

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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.