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Finding the Fourth Proportional to 300,463.56, 414,640.08 and 173,135.88

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Solution

The fourth proportional to 300,463.56, 414,640.08 and 173,135.88 is: 238,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,463.56 : 414,640.08 = 173,135.88 : x
  2. Step 2: Convert to fraction form
    300,463.56/414,640.08 = 173,135.88/x
  3. Step 3: Cross multiply
    300,463.56x = 414,640.08 × 173,135.88
  4. Step 4: Simplify right side
    300,463.56x = 71,789,075,134.07
  5. Step 5: Solve for x
    x = 71,789,075,134.07/300,463.56
  6. Step 6: Final answer
    x = 238,927.73

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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.