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Finding the Fourth Proportional to 201,199.56, 277,662.90 and 120,640.20

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Solution

The fourth proportional to 201,199.56, 277,662.90 and 120,640.20 is: 166,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,199.56 : 277,662.90 = 120,640.20 : x
  2. Step 2: Convert to fraction form
    201,199.56/277,662.90 = 120,640.20/x
  3. Step 3: Cross multiply
    201,199.56x = 277,662.90 × 120,640.20
  4. Step 4: Simplify right side
    201,199.56x = 33,497,307,788.58
  5. Step 5: Solve for x
    x = 33,497,307,788.58/201,199.56
  6. Step 6: Final answer
    x = 166,487.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.