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Finding the Fourth Proportional to 378,690.86, 567,604.36 and 236,601.47

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Solution

The fourth proportional to 378,690.86, 567,604.36 and 236,601.47 is: 354,632.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,690.86 : 567,604.36 = 236,601.47 : x
  2. Step 2: Convert to fraction form
    378,690.86/567,604.36 = 236,601.47/x
  3. Step 3: Cross multiply
    378,690.86x = 567,604.36 × 236,601.47
  4. Step 4: Simplify right side
    378,690.86x = 134,296,027,669.17
  5. Step 5: Solve for x
    x = 134,296,027,669.17/378,690.86
  6. Step 6: Final answer
    x = 354,632.34

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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.