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Finding the Fourth Proportional to 428,179.86, 590,858.37 and 237,177

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Solution

The fourth proportional to 428,179.86, 590,858.37 and 237,177 is: 327,287.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,179.86 : 590,858.37 = 237,177 : x
  2. Step 2: Convert to fraction form
    428,179.86/590,858.37 = 237,177/x
  3. Step 3: Cross multiply
    428,179.86x = 590,858.37 × 237,177
  4. Step 4: Simplify right side
    428,179.86x = 140,138,015,621.49
  5. Step 5: Solve for x
    x = 140,138,015,621.49/428,179.86
  6. Step 6: Final answer
    x = 327,287.73

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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.