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Finding the Fourth Proportional to 303,504, 419,522.40 and 276,555.84

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Solution

The fourth proportional to 303,504, 419,522.40 and 276,555.84 is: 382,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,504 : 419,522.40 = 276,555.84 : x
  2. Step 2: Convert to fraction form
    303,504/419,522.40 = 276,555.84/x
  3. Step 3: Cross multiply
    303,504x = 419,522.40 × 276,555.84
  4. Step 4: Simplify right side
    303,504x = 116,021,369,730.82
  5. Step 5: Solve for x
    x = 116,021,369,730.82/303,504
  6. Step 6: Final answer
    x = 382,272.95

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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.