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Finding the Fourth Proportional to 270,418.56, 405,591.84 and 70,723.04

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Solution

The fourth proportional to 270,418.56, 405,591.84 and 70,723.04 is: 106,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,418.56 : 405,591.84 = 70,723.04 : x
  2. Step 2: Convert to fraction form
    270,418.56/405,591.84 = 70,723.04/x
  3. Step 3: Cross multiply
    270,418.56x = 405,591.84 × 70,723.04
  4. Step 4: Simplify right side
    270,418.56x = 28,684,687,923.99
  5. Step 5: Solve for x
    x = 28,684,687,923.99/270,418.56
  6. Step 6: Final answer
    x = 106,075.14

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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.