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Finding the Fourth Proportional to 217,375.73, 299,981.56 and 131,322.74

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Solution

The fourth proportional to 217,375.73, 299,981.56 and 131,322.74 is: 181,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,375.73 : 299,981.56 = 131,322.74 : x
  2. Step 2: Convert to fraction form
    217,375.73/299,981.56 = 131,322.74/x
  3. Step 3: Cross multiply
    217,375.73x = 299,981.56 × 131,322.74
  4. Step 4: Simplify right side
    217,375.73x = 39,394,400,408.67
  5. Step 5: Solve for x
    x = 39,394,400,408.67/217,375.73
  6. Step 6: Final answer
    x = 181,227.23

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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.