Home / 386,788.11-580,210.11-161,922.39

Finding the Fourth Proportional to 386,788.11, 580,210.11 and 161,922.39

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Solution

The fourth proportional to 386,788.11, 580,210.11 and 161,922.39 is: 242,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,788.11 : 580,210.11 = 161,922.39 : x
  2. Step 2: Convert to fraction form
    386,788.11/580,210.11 = 161,922.39/x
  3. Step 3: Cross multiply
    386,788.11x = 580,210.11 × 161,922.39
  4. Step 4: Simplify right side
    386,788.11x = 93,949,007,713.36
  5. Step 5: Solve for x
    x = 93,949,007,713.36/386,788.11
  6. Step 6: Final answer
    x = 242,895.28

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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.