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Finding the Fourth Proportional to 201,264.60, 301,551.30 and 131,107.80

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Solution

The fourth proportional to 201,264.60, 301,551.30 and 131,107.80 is: 196,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,264.60 : 301,551.30 = 131,107.80 : x
  2. Step 2: Convert to fraction form
    201,264.60/301,551.30 = 131,107.80/x
  3. Step 3: Cross multiply
    201,264.60x = 301,551.30 × 131,107.80
  4. Step 4: Simplify right side
    201,264.60x = 39,535,727,530.14
  5. Step 5: Solve for x
    x = 39,535,727,530.14/201,264.60
  6. Step 6: Final answer
    x = 196,436.57

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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.