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Finding the Fourth Proportional to 465,661.60, 697,908 and 199,108.72

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Solution

The fourth proportional to 465,661.60, 697,908 and 199,108.72 is: 298,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,661.60 : 697,908 = 199,108.72 : x
  2. Step 2: Convert to fraction form
    465,661.60/697,908 = 199,108.72/x
  3. Step 3: Cross multiply
    465,661.60x = 697,908 × 199,108.72
  4. Step 4: Simplify right side
    465,661.60x = 138,959,568,557.76
  5. Step 5: Solve for x
    x = 138,959,568,557.76/465,661.60
  6. Step 6: Final answer
    x = 298,413.20

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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.