Home / 217,640.05-300,344.52-120,845.25

Finding the Fourth Proportional to 217,640.05, 300,344.52 and 120,845.25

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Solution

The fourth proportional to 217,640.05, 300,344.52 and 120,845.25 is: 166,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,640.05 : 300,344.52 = 120,845.25 : x
  2. Step 2: Convert to fraction form
    217,640.05/300,344.52 = 120,845.25/x
  3. Step 3: Cross multiply
    217,640.05x = 300,344.52 × 120,845.25
  4. Step 4: Simplify right side
    217,640.05x = 36,295,208,605.53
  5. Step 5: Solve for x
    x = 36,295,208,605.53/217,640.05
  6. Step 6: Final answer
    x = 166,767.14

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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.