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Finding the Fourth Proportional to 200,413.32, 276,437.20 and 128,883.84

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Solution

The fourth proportional to 200,413.32, 276,437.20 and 128,883.84 is: 177,774.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,413.32 : 276,437.20 = 128,883.84 : x
  2. Step 2: Convert to fraction form
    200,413.32/276,437.20 = 128,883.84/x
  3. Step 3: Cross multiply
    200,413.32x = 276,437.20 × 128,883.84
  4. Step 4: Simplify right side
    200,413.32x = 35,628,287,854.85
  5. Step 5: Solve for x
    x = 35,628,287,854.85/200,413.32
  6. Step 6: Final answer
    x = 177,774.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.