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Finding the Fourth Proportional to 228,376.75, 342,409.43 and 115,839.97

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Solution

The fourth proportional to 228,376.75, 342,409.43 and 115,839.97 is: 173,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,376.75 : 342,409.43 = 115,839.97 : x
  2. Step 2: Convert to fraction form
    228,376.75/342,409.43 = 115,839.97/x
  3. Step 3: Cross multiply
    228,376.75x = 342,409.43 × 115,839.97
  4. Step 4: Simplify right side
    228,376.75x = 39,664,697,957.31
  5. Step 5: Solve for x
    x = 39,664,697,957.31/228,376.75
  6. Step 6: Final answer
    x = 173,680.98

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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.