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Finding the Fourth Proportional to 274,760.40, 412,140.60 and 203,901.60

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Solution

The fourth proportional to 274,760.40, 412,140.60 and 203,901.60 is: 305,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,760.40 : 412,140.60 = 203,901.60 : x
  2. Step 2: Convert to fraction form
    274,760.40/412,140.60 = 203,901.60/x
  3. Step 3: Cross multiply
    274,760.40x = 412,140.60 × 203,901.60
  4. Step 4: Simplify right side
    274,760.40x = 84,036,127,764.96
  5. Step 5: Solve for x
    x = 84,036,127,764.96/274,760.40
  6. Step 6: Final answer
    x = 305,852.40

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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.