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Finding the Fourth Proportional to 630,650.95, 945,413.79 and 231,198.40

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Solution

The fourth proportional to 630,650.95, 945,413.79 and 231,198.40 is: 346,591.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,650.95 : 945,413.79 = 231,198.40 : x
  2. Step 2: Convert to fraction form
    630,650.95/945,413.79 = 231,198.40/x
  3. Step 3: Cross multiply
    630,650.95x = 945,413.79 × 231,198.40
  4. Step 4: Simplify right side
    630,650.95x = 218,578,155,585.94
  5. Step 5: Solve for x
    x = 218,578,155,585.94/630,650.95
  6. Step 6: Final answer
    x = 346,591.34

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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.