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Finding the Fourth Proportional to 417,131.56, 625,749.72 and 203,906.35

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Solution

The fourth proportional to 417,131.56, 625,749.72 and 203,906.35 is: 305,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,131.56 : 625,749.72 = 203,906.35 : x
  2. Step 2: Convert to fraction form
    417,131.56/625,749.72 = 203,906.35/x
  3. Step 3: Cross multiply
    417,131.56x = 625,749.72 × 203,906.35
  4. Step 4: Simplify right side
    417,131.56x = 127,594,341,418.72
  5. Step 5: Solve for x
    x = 127,594,341,418.72/417,131.56
  6. Step 6: Final answer
    x = 305,885.13

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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.