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Finding the Fourth Proportional to 200,395.36, 300,597.90 and 67,279.96

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Solution

The fourth proportional to 200,395.36, 300,597.90 and 67,279.96 is: 100,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,395.36 : 300,597.90 = 67,279.96 : x
  2. Step 2: Convert to fraction form
    200,395.36/300,597.90 = 67,279.96/x
  3. Step 3: Cross multiply
    200,395.36x = 300,597.90 × 67,279.96
  4. Step 4: Simplify right side
    200,395.36x = 20,224,214,688.08
  5. Step 5: Solve for x
    x = 20,224,214,688.08/200,395.36
  6. Step 6: Final answer
    x = 100,921.57

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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.