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Finding the Fourth Proportional to 201,294.80, 301,942.20 and 134,939.60

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Solution

The fourth proportional to 201,294.80, 301,942.20 and 134,939.60 is: 202,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,294.80 : 301,942.20 = 134,939.60 : x
  2. Step 2: Convert to fraction form
    201,294.80/301,942.20 = 134,939.60/x
  3. Step 3: Cross multiply
    201,294.80x = 301,942.20 × 134,939.60
  4. Step 4: Simplify right side
    201,294.80x = 40,743,959,691.12
  5. Step 5: Solve for x
    x = 40,743,959,691.12/201,294.80
  6. Step 6: Final answer
    x = 202,409.40

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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.