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Finding the Fourth Proportional to 268,057.84, 369,928.44 and 154,880.56

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Solution

The fourth proportional to 268,057.84, 369,928.44 and 154,880.56 is: 213,740.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,057.84 : 369,928.44 = 154,880.56 : x
  2. Step 2: Convert to fraction form
    268,057.84/369,928.44 = 154,880.56/x
  3. Step 3: Cross multiply
    268,057.84x = 369,928.44 × 154,880.56
  4. Step 4: Simplify right side
    268,057.84x = 57,294,723,947.13
  5. Step 5: Solve for x
    x = 57,294,723,947.13/268,057.84
  6. Step 6: Final answer
    x = 213,740.15

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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.