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Finding the Fourth Proportional to 215,383.36, 323,126.24 and 67,639.36

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Solution

The fourth proportional to 215,383.36, 323,126.24 and 67,639.36 is: 101,475.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,383.36 : 323,126.24 = 67,639.36 : x
  2. Step 2: Convert to fraction form
    215,383.36/323,126.24 = 67,639.36/x
  3. Step 3: Cross multiply
    215,383.36x = 323,126.24 × 67,639.36
  4. Step 4: Simplify right side
    215,383.36x = 21,856,052,072.81
  5. Step 5: Solve for x
    x = 21,856,052,072.81/215,383.36
  6. Step 6: Final answer
    x = 101,475.12

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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.