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Finding the Fourth Proportional to 201,401.10, 301,756.05 and 131,244.30

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Solution

The fourth proportional to 201,401.10, 301,756.05 and 131,244.30 is: 196,641.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,401.10 : 301,756.05 = 131,244.30 : x
  2. Step 2: Convert to fraction form
    201,401.10/301,756.05 = 131,244.30/x
  3. Step 3: Cross multiply
    201,401.10x = 301,756.05 × 131,244.30
  4. Step 4: Simplify right side
    201,401.10x = 39,603,761,553.02
  5. Step 5: Solve for x
    x = 39,603,761,553.02/201,401.10
  6. Step 6: Final answer
    x = 196,641.24

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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.