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Finding the Fourth Proportional to 201,072.80, 301,839.60 and 118,013.60

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Solution

The fourth proportional to 201,072.80, 301,839.60 and 118,013.60 is: 177,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,072.80 : 301,839.60 = 118,013.60 : x
  2. Step 2: Convert to fraction form
    201,072.80/301,839.60 = 118,013.60/x
  3. Step 3: Cross multiply
    201,072.80x = 301,839.60 × 118,013.60
  4. Step 4: Simplify right side
    201,072.80x = 35,621,177,818.56
  5. Step 5: Solve for x
    x = 35,621,177,818.56/201,072.80
  6. Step 6: Final answer
    x = 177,155.63

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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.