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Finding the Fourth Proportional to 228,860, 343,341.92 and 81,116

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Solution

The fourth proportional to 228,860, 343,341.92 and 81,116 is: 121,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,860 : 343,341.92 = 81,116 : x
  2. Step 2: Convert to fraction form
    228,860/343,341.92 = 81,116/x
  3. Step 3: Cross multiply
    228,860x = 343,341.92 × 81,116
  4. Step 4: Simplify right side
    228,860x = 27,850,523,182.72
  5. Step 5: Solve for x
    x = 27,850,523,182.72/228,860
  6. Step 6: Final answer
    x = 121,692.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.