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Finding the Fourth Proportional to 228,261.59, 315,101.90 and 136,413.29

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Solution

The fourth proportional to 228,261.59, 315,101.90 and 136,413.29 is: 188,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,261.59 : 315,101.90 = 136,413.29 : x
  2. Step 2: Convert to fraction form
    228,261.59/315,101.90 = 136,413.29/x
  3. Step 3: Cross multiply
    228,261.59x = 315,101.90 × 136,413.29
  4. Step 4: Simplify right side
    228,261.59x = 42,984,086,182.18
  5. Step 5: Solve for x
    x = 42,984,086,182.18/228,261.59
  6. Step 6: Final answer
    x = 188,310.64

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Why These Related Problems?

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