Home / 319,190.20-478,766.86-116,922.78

Finding the Fourth Proportional to 319,190.20, 478,766.86 and 116,922.78

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Solution

The fourth proportional to 319,190.20, 478,766.86 and 116,922.78 is: 175,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,190.20 : 478,766.86 = 116,922.78 : x
  2. Step 2: Convert to fraction form
    319,190.20/478,766.86 = 116,922.78/x
  3. Step 3: Cross multiply
    319,190.20x = 478,766.86 × 116,922.78
  4. Step 4: Simplify right side
    319,190.20x = 55,978,751,950.76
  5. Step 5: Solve for x
    x = 55,978,751,950.76/319,190.20
  6. Step 6: Final answer
    x = 175,377.42

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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.