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Finding the Fourth Proportional to 201,608.70, 302,413.05 and 198,498.30

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Solution

The fourth proportional to 201,608.70, 302,413.05 and 198,498.30 is: 297,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,608.70 : 302,413.05 = 198,498.30 : x
  2. Step 2: Convert to fraction form
    201,608.70/302,413.05 = 198,498.30/x
  3. Step 3: Cross multiply
    201,608.70x = 302,413.05 × 198,498.30
  4. Step 4: Simplify right side
    201,608.70x = 60,028,476,322.82
  5. Step 5: Solve for x
    x = 60,028,476,322.82/201,608.70
  6. Step 6: Final answer
    x = 297,747.45

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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.