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Finding the Fourth Proportional to 201,008.70, 301,513.05 and 190,122.30

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Solution

The fourth proportional to 201,008.70, 301,513.05 and 190,122.30 is: 285,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,008.70 : 301,513.05 = 190,122.30 : x
  2. Step 2: Convert to fraction form
    201,008.70/301,513.05 = 190,122.30/x
  3. Step 3: Cross multiply
    201,008.70x = 301,513.05 × 190,122.30
  4. Step 4: Simplify right side
    201,008.70x = 57,324,354,546.02
  5. Step 5: Solve for x
    x = 57,324,354,546.02/201,008.70
  6. Step 6: Final answer
    x = 285,183.45

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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.