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Finding the Fourth Proportional to 200,485.54, 300,735.60 and 67,370.14

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Solution

The fourth proportional to 200,485.54, 300,735.60 and 67,370.14 is: 101,057.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,485.54 : 300,735.60 = 67,370.14 : x
  2. Step 2: Convert to fraction form
    200,485.54/300,735.60 = 67,370.14/x
  3. Step 3: Cross multiply
    200,485.54x = 300,735.60 × 67,370.14
  4. Step 4: Simplify right side
    200,485.54x = 20,260,599,474.98
  5. Step 5: Solve for x
    x = 20,260,599,474.98/200,485.54
  6. Step 6: Final answer
    x = 101,057.66

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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.