Home / 198,942.30-298,413.48-190,303.68

Finding the Fourth Proportional to 198,942.30, 298,413.48 and 190,303.68

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Solution

The fourth proportional to 198,942.30, 298,413.48 and 190,303.68 is: 285,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,942.30 : 298,413.48 = 190,303.68 : x
  2. Step 2: Convert to fraction form
    198,942.30/298,413.48 = 190,303.68/x
  3. Step 3: Cross multiply
    198,942.30x = 298,413.48 × 190,303.68
  4. Step 4: Simplify right side
    198,942.30x = 56,789,183,405.61
  5. Step 5: Solve for x
    x = 56,789,183,405.61/198,942.30
  6. Step 6: Final answer
    x = 285,455.55

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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.