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Finding the Fourth Proportional to 268,608.09, 370,683.87 and 147,754.47

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Solution

The fourth proportional to 268,608.09, 370,683.87 and 147,754.47 is: 203,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,608.09 : 370,683.87 = 147,754.47 : x
  2. Step 2: Convert to fraction form
    268,608.09/370,683.87 = 147,754.47/x
  3. Step 3: Cross multiply
    268,608.09x = 370,683.87 × 147,754.47
  4. Step 4: Simplify right side
    268,608.09x = 54,770,198,749.40
  5. Step 5: Solve for x
    x = 54,770,198,749.40/268,608.09
  6. Step 6: Final answer
    x = 203,903.76

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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.