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Finding the Fourth Proportional to 201,505.60, 301,912.80 and 131,348.80

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Solution

The fourth proportional to 201,505.60, 301,912.80 and 131,348.80 is: 196,797.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,505.60 : 301,912.80 = 131,348.80 : x
  2. Step 2: Convert to fraction form
    201,505.60/301,912.80 = 131,348.80/x
  3. Step 3: Cross multiply
    201,505.60x = 301,912.80 × 131,348.80
  4. Step 4: Simplify right side
    201,505.60x = 39,655,883,984.64
  5. Step 5: Solve for x
    x = 39,655,883,984.64/201,505.60
  6. Step 6: Final answer
    x = 196,797.93

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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.