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Finding the Fourth Proportional to 228,261.34, 315,101.55 and 136,413.04

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Solution

The fourth proportional to 228,261.34, 315,101.55 and 136,413.04 is: 188,310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,261.34 : 315,101.55 = 136,413.04 : x
  2. Step 2: Convert to fraction form
    228,261.34/315,101.55 = 136,413.04/x
  3. Step 3: Cross multiply
    228,261.34x = 315,101.55 × 136,413.04
  4. Step 4: Simplify right side
    228,261.34x = 42,983,960,344.21
  5. Step 5: Solve for x
    x = 42,983,960,344.21/228,261.34
  6. Step 6: Final answer
    x = 188,310.29

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1.5x scale

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.