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Finding the Fourth Proportional to 201,140.90, 301,273.95 and 122,117.30

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Solution

The fourth proportional to 201,140.90, 301,273.95 and 122,117.30 is: 182,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,140.90 : 301,273.95 = 122,117.30 : x
  2. Step 2: Convert to fraction form
    201,140.90/301,273.95 = 122,117.30/x
  3. Step 3: Cross multiply
    201,140.90x = 301,273.95 × 122,117.30
  4. Step 4: Simplify right side
    201,140.90x = 36,790,761,334.34
  5. Step 5: Solve for x
    x = 36,790,761,334.34/201,140.90
  6. Step 6: Final answer
    x = 182,910.39

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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.