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Finding the Fourth Proportional to 197,422.43, 272,443.01 and 111,399.67

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Solution

The fourth proportional to 197,422.43, 272,443.01 and 111,399.67 is: 153,731.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,422.43 : 272,443.01 = 111,399.67 : x
  2. Step 2: Convert to fraction form
    197,422.43/272,443.01 = 111,399.67/x
  3. Step 3: Cross multiply
    197,422.43x = 272,443.01 × 111,399.67
  4. Step 4: Simplify right side
    197,422.43x = 30,350,060,169.70
  5. Step 5: Solve for x
    x = 30,350,060,169.70/197,422.43
  6. Step 6: Final answer
    x = 153,731.57

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