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Finding the Fourth Proportional to 268,112.62, 369,954.30 and 154,913.50

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Solution

The fourth proportional to 268,112.62, 369,954.30 and 154,913.50 is: 213,756.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,112.62 : 369,954.30 = 154,913.50 : x
  2. Step 2: Convert to fraction form
    268,112.62/369,954.30 = 154,913.50/x
  3. Step 3: Cross multiply
    268,112.62x = 369,954.30 × 154,913.50
  4. Step 4: Simplify right side
    268,112.62x = 57,310,915,453.05
  5. Step 5: Solve for x
    x = 57,310,915,453.05/268,112.62
  6. Step 6: Final answer
    x = 213,756.87

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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.