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Finding the Fourth Proportional to 243,871.20, 365,806.80 and 111,010.95

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Solution

The fourth proportional to 243,871.20, 365,806.80 and 111,010.95 is: 166,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,871.20 : 365,806.80 = 111,010.95 : x
  2. Step 2: Convert to fraction form
    243,871.20/365,806.80 = 111,010.95/x
  3. Step 3: Cross multiply
    243,871.20x = 365,806.80 × 111,010.95
  4. Step 4: Simplify right side
    243,871.20x = 40,608,560,384.46
  5. Step 5: Solve for x
    x = 40,608,560,384.46/243,871.20
  6. Step 6: Final answer
    x = 166,516.43

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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.