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Finding the Fourth Proportional to 408,054.88, 612,033.52 and 108,557.36

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Solution

The fourth proportional to 408,054.88, 612,033.52 and 108,557.36 is: 162,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,054.88 : 612,033.52 = 108,557.36 : x
  2. Step 2: Convert to fraction form
    408,054.88/612,033.52 = 108,557.36/x
  3. Step 3: Cross multiply
    408,054.88x = 612,033.52 × 108,557.36
  4. Step 4: Simplify right side
    408,054.88x = 66,440,743,162.71
  5. Step 5: Solve for x
    x = 66,440,743,162.71/408,054.88
  6. Step 6: Final answer
    x = 162,823.06

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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.