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Finding the Fourth Proportional to 201,140.80, 301,905.60 and 122,408.80

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Solution

The fourth proportional to 201,140.80, 301,905.60 and 122,408.80 is: 183,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,140.80 : 301,905.60 = 122,408.80 : x
  2. Step 2: Convert to fraction form
    201,140.80/301,905.60 = 122,408.80/x
  3. Step 3: Cross multiply
    201,140.80x = 301,905.60 × 122,408.80
  4. Step 4: Simplify right side
    201,140.80x = 36,955,902,209.28
  5. Step 5: Solve for x
    x = 36,955,902,209.28/201,140.80
  6. Step 6: Final answer
    x = 183,731.51

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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.