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Finding the Fourth Proportional to 331,276.42, 457,167 and 188,040.88

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Solution

The fourth proportional to 331,276.42, 457,167 and 188,040.88 is: 259,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,276.42 : 457,167 = 188,040.88 : x
  2. Step 2: Convert to fraction form
    331,276.42/457,167 = 188,040.88/x
  3. Step 3: Cross multiply
    331,276.42x = 457,167 × 188,040.88
  4. Step 4: Simplify right side
    331,276.42x = 85,966,084,986.96
  5. Step 5: Solve for x
    x = 85,966,084,986.96/331,276.42
  6. Step 6: Final answer
    x = 259,499.56

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1.5x scale

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.