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Finding the Fourth Proportional to 361,485.65, 498,872.39 and 208,521.14

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Solution

The fourth proportional to 361,485.65, 498,872.39 and 208,521.14 is: 287,771.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,485.65 : 498,872.39 = 208,521.14 : x
  2. Step 2: Convert to fraction form
    361,485.65/498,872.39 = 208,521.14/x
  3. Step 3: Cross multiply
    361,485.65x = 498,872.39 × 208,521.14
  4. Step 4: Simplify right side
    361,485.65x = 104,025,435,940.36
  5. Step 5: Solve for x
    x = 104,025,435,940.36/361,485.65
  6. Step 6: Final answer
    x = 287,771.96

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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.