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Finding the Fourth Proportional to 201,212.22, 301,630.70 and 67,999.32

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Solution

The fourth proportional to 201,212.22, 301,630.70 and 67,999.32 is: 101,935.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,212.22 : 301,630.70 = 67,999.32 : x
  2. Step 2: Convert to fraction form
    201,212.22/301,630.70 = 67,999.32/x
  3. Step 3: Cross multiply
    201,212.22x = 301,630.70 × 67,999.32
  4. Step 4: Simplify right side
    201,212.22x = 20,510,682,491.12
  5. Step 5: Solve for x
    x = 20,510,682,491.12/201,212.22
  6. Step 6: Final answer
    x = 101,935.57

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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.