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Finding the Fourth Proportional to 327,571.73, 491,357.45 and 90,914.34

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Solution

The fourth proportional to 327,571.73, 491,357.45 and 90,914.34 is: 136,371.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,571.73 : 491,357.45 = 90,914.34 : x
  2. Step 2: Convert to fraction form
    327,571.73/491,357.45 = 90,914.34/x
  3. Step 3: Cross multiply
    327,571.73x = 491,357.45 × 90,914.34
  4. Step 4: Simplify right side
    327,571.73x = 44,671,437,816.26
  5. Step 5: Solve for x
    x = 44,671,437,816.26/327,571.73
  6. Step 6: Final answer
    x = 136,371.47

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1.5x scale

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.