Home / 217,147.25-325,640.81-74,956.34

Finding the Fourth Proportional to 217,147.25, 325,640.81 and 74,956.34

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Solution

The fourth proportional to 217,147.25, 325,640.81 and 74,956.34 is: 112,406.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,147.25 : 325,640.81 = 74,956.34 : x
  2. Step 2: Convert to fraction form
    217,147.25/325,640.81 = 74,956.34/x
  3. Step 3: Cross multiply
    217,147.25x = 325,640.81 × 74,956.34
  4. Step 4: Simplify right side
    217,147.25x = 24,408,841,269.25
  5. Step 5: Solve for x
    x = 24,408,841,269.25/217,147.25
  6. Step 6: Final answer
    x = 112,406.87

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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.