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Finding the Fourth Proportional to 370,658.79, 511,495.36 and 200,889.27

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Solution

The fourth proportional to 370,658.79, 511,495.36 and 200,889.27 is: 277,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,658.79 : 511,495.36 = 200,889.27 : x
  2. Step 2: Convert to fraction form
    370,658.79/511,495.36 = 200,889.27/x
  3. Step 3: Cross multiply
    370,658.79x = 511,495.36 × 200,889.27
  4. Step 4: Simplify right side
    370,658.79x = 102,753,928,976.56
  5. Step 5: Solve for x
    x = 102,753,928,976.56/370,658.79
  6. Step 6: Final answer
    x = 277,219.73

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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.