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Finding the Fourth Proportional to 262,143.36, 361,754.39 and 147,421.97

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Solution

The fourth proportional to 262,143.36, 361,754.39 and 147,421.97 is: 203,440.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,143.36 : 361,754.39 = 147,421.97 : x
  2. Step 2: Convert to fraction form
    262,143.36/361,754.39 = 147,421.97/x
  3. Step 3: Cross multiply
    262,143.36x = 361,754.39 × 147,421.97
  4. Step 4: Simplify right side
    262,143.36x = 53,330,543,389.73
  5. Step 5: Solve for x
    x = 53,330,543,389.73/262,143.36
  6. Step 6: Final answer
    x = 203,440.37

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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.