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Finding the Fourth Proportional to 201,860.40, 302,936.40 and 113,019.60

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Solution

The fourth proportional to 201,860.40, 302,936.40 and 113,019.60 is: 169,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,860.40 : 302,936.40 = 113,019.60 : x
  2. Step 2: Convert to fraction form
    201,860.40/302,936.40 = 113,019.60/x
  3. Step 3: Cross multiply
    201,860.40x = 302,936.40 × 113,019.60
  4. Step 4: Simplify right side
    201,860.40x = 34,237,750,753.44
  5. Step 5: Solve for x
    x = 34,237,750,753.44/201,860.40
  6. Step 6: Final answer
    x = 169,611.03

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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.