Home / 386,788.36-580,210.48-161,922.64

Finding the Fourth Proportional to 386,788.36, 580,210.48 and 161,922.64

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Solution

The fourth proportional to 386,788.36, 580,210.48 and 161,922.64 is: 242,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,788.36 : 580,210.48 = 161,922.64 : x
  2. Step 2: Convert to fraction form
    386,788.36/580,210.48 = 161,922.64/x
  3. Step 3: Cross multiply
    386,788.36x = 580,210.48 × 161,922.64
  4. Step 4: Simplify right side
    386,788.36x = 93,949,212,677.27
  5. Step 5: Solve for x
    x = 93,949,212,677.27/386,788.36
  6. Step 6: Final answer
    x = 242,895.66

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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.