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Finding the Fourth Proportional to 201,191.80, 301,326.90 and 102,580.60

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Solution

The fourth proportional to 201,191.80, 301,326.90 and 102,580.60 is: 153,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,191.80 : 301,326.90 = 102,580.60 : x
  2. Step 2: Convert to fraction form
    201,191.80/301,326.90 = 102,580.60/x
  3. Step 3: Cross multiply
    201,191.80x = 301,326.90 × 102,580.60
  4. Step 4: Simplify right side
    201,191.80x = 30,910,294,198.14
  5. Step 5: Solve for x
    x = 30,910,294,198.14/201,191.80
  6. Step 6: Final answer
    x = 153,635.95

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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.