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Finding the Fourth Proportional to 366,942.60, 550,413.90 and 266,632.20

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Solution

The fourth proportional to 366,942.60, 550,413.90 and 266,632.20 is: 399,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,942.60 : 550,413.90 = 266,632.20 : x
  2. Step 2: Convert to fraction form
    366,942.60/550,413.90 = 266,632.20/x
  3. Step 3: Cross multiply
    366,942.60x = 550,413.90 × 266,632.20
  4. Step 4: Simplify right side
    366,942.60x = 146,758,069,067.58
  5. Step 5: Solve for x
    x = 146,758,069,067.58/366,942.60
  6. Step 6: Final answer
    x = 399,948.30

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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.