Home / 345,620.85-518,382.06-108,932.77

Finding the Fourth Proportional to 345,620.85, 518,382.06 and 108,932.77

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Solution

The fourth proportional to 345,620.85, 518,382.06 and 108,932.77 is: 163,383.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,620.85 : 518,382.06 = 108,932.77 : x
  2. Step 2: Convert to fraction form
    345,620.85/518,382.06 = 108,932.77/x
  3. Step 3: Cross multiply
    345,620.85x = 518,382.06 × 108,932.77
  4. Step 4: Simplify right side
    345,620.85x = 56,468,793,714.11
  5. Step 5: Solve for x
    x = 56,468,793,714.11/345,620.85
  6. Step 6: Final answer
    x = 163,383.64

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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.