Home / 345,628.91-518,394.15-108,940.83

Finding the Fourth Proportional to 345,628.91, 518,394.15 and 108,940.83

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Solution

The fourth proportional to 345,628.91, 518,394.15 and 108,940.83 is: 163,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,628.91 : 518,394.15 = 108,940.83 : x
  2. Step 2: Convert to fraction form
    345,628.91/518,394.15 = 108,940.83/x
  3. Step 3: Cross multiply
    345,628.91x = 518,394.15 × 108,940.83
  4. Step 4: Simplify right side
    345,628.91x = 56,474,288,968.14
  5. Step 5: Solve for x
    x = 56,474,288,968.14/345,628.91
  6. Step 6: Final answer
    x = 163,395.73

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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.