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Finding the Fourth Proportional to 201,930.90, 302,932.38 and 67,003.05

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Solution

The fourth proportional to 201,930.90, 302,932.38 and 67,003.05 is: 100,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,930.90 : 302,932.38 = 67,003.05 : x
  2. Step 2: Convert to fraction form
    201,930.90/302,932.38 = 67,003.05/x
  3. Step 3: Cross multiply
    201,930.90x = 302,932.38 × 67,003.05
  4. Step 4: Simplify right side
    201,930.90x = 20,297,393,403.76
  5. Step 5: Solve for x
    x = 20,297,393,403.76/201,930.90
  6. Step 6: Final answer
    x = 100,516.53

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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.