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Finding the Fourth Proportional to 505,471.83, 758,193.15 and 205,878.33

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Solution

The fourth proportional to 505,471.83, 758,193.15 and 205,878.33 is: 308,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,471.83 : 758,193.15 = 205,878.33 : x
  2. Step 2: Convert to fraction form
    505,471.83/758,193.15 = 205,878.33/x
  3. Step 3: Cross multiply
    505,471.83x = 758,193.15 × 205,878.33
  4. Step 4: Simplify right side
    505,471.83x = 156,095,539,539.44
  5. Step 5: Solve for x
    x = 156,095,539,539.44/505,471.83
  6. Step 6: Final answer
    x = 308,811.55

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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.