Home / 279,374.28-419,075.26-79,724.10

Finding the Fourth Proportional to 279,374.28, 419,075.26 and 79,724.10

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Solution

The fourth proportional to 279,374.28, 419,075.26 and 79,724.10 is: 119,590.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,374.28 : 419,075.26 = 79,724.10 : x
  2. Step 2: Convert to fraction form
    279,374.28/419,075.26 = 79,724.10/x
  3. Step 3: Cross multiply
    279,374.28x = 419,075.26 × 79,724.10
  4. Step 4: Simplify right side
    279,374.28x = 33,410,397,935.77
  5. Step 5: Solve for x
    x = 33,410,397,935.77/279,374.28
  6. Step 6: Final answer
    x = 119,590.10

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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.