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Finding the Fourth Proportional to 275,956.08, 380,808.60 and 155,102.64

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Solution

The fourth proportional to 275,956.08, 380,808.60 and 155,102.64 is: 214,035.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,956.08 : 380,808.60 = 155,102.64 : x
  2. Step 2: Convert to fraction form
    275,956.08/380,808.60 = 155,102.64/x
  3. Step 3: Cross multiply
    275,956.08x = 380,808.60 × 155,102.64
  4. Step 4: Simplify right side
    275,956.08x = 59,064,419,194.70
  5. Step 5: Solve for x
    x = 59,064,419,194.70/275,956.08
  6. Step 6: Final answer
    x = 214,035.58

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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.