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Finding the Fourth Proportional to 336,902.40, 505,324.44 and 137,243.88

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Solution

The fourth proportional to 336,902.40, 505,324.44 and 137,243.88 is: 205,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,902.40 : 505,324.44 = 137,243.88 : x
  2. Step 2: Convert to fraction form
    336,902.40/505,324.44 = 137,243.88/x
  3. Step 3: Cross multiply
    336,902.40x = 505,324.44 × 137,243.88
  4. Step 4: Simplify right side
    336,902.40x = 69,352,686,804.43
  5. Step 5: Solve for x
    x = 69,352,686,804.43/336,902.40
  6. Step 6: Final answer
    x = 205,853.94

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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.