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Finding the Fourth Proportional to 201,059.10, 301,243.05 and 130,902.30

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Solution

The fourth proportional to 201,059.10, 301,243.05 and 130,902.30 is: 196,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,059.10 : 301,243.05 = 130,902.30 : x
  2. Step 2: Convert to fraction form
    201,059.10/301,243.05 = 130,902.30/x
  3. Step 3: Cross multiply
    201,059.10x = 301,243.05 × 130,902.30
  4. Step 4: Simplify right side
    201,059.10x = 39,433,408,104.02
  5. Step 5: Solve for x
    x = 39,433,408,104.02/201,059.10
  6. Step 6: Final answer
    x = 196,128.44

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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.