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Finding the Fourth Proportional to 275,504.12, 380,201.30 and 154,654.12

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Solution

The fourth proportional to 275,504.12, 380,201.30 and 154,654.12 is: 213,425.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,504.12 : 380,201.30 = 154,654.12 : x
  2. Step 2: Convert to fraction form
    275,504.12/380,201.30 = 154,654.12/x
  3. Step 3: Cross multiply
    275,504.12x = 380,201.30 × 154,654.12
  4. Step 4: Simplify right side
    275,504.12x = 58,799,697,474.36
  5. Step 5: Solve for x
    x = 58,799,697,474.36/275,504.12
  6. Step 6: Final answer
    x = 213,425.84

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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.