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Finding the Fourth Proportional to 201,212.53, 301,771.90 and 74,912.25

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Solution

The fourth proportional to 201,212.53, 301,771.90 and 74,912.25 is: 112,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,212.53 : 301,771.90 = 74,912.25 : x
  2. Step 2: Convert to fraction form
    201,212.53/301,771.90 = 74,912.25/x
  3. Step 3: Cross multiply
    201,212.53x = 301,771.90 × 74,912.25
  4. Step 4: Simplify right side
    201,212.53x = 22,606,412,015.78
  5. Step 5: Solve for x
    x = 22,606,412,015.78/201,212.53
  6. Step 6: Final answer
    x = 112,350.92

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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.