Home / 279,022.20-418,533.30-254,527.80

Finding the Fourth Proportional to 279,022.20, 418,533.30 and 254,527.80

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Solution

The fourth proportional to 279,022.20, 418,533.30 and 254,527.80 is: 381,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,022.20 : 418,533.30 = 254,527.80 : x
  2. Step 2: Convert to fraction form
    279,022.20/418,533.30 = 254,527.80/x
  3. Step 3: Cross multiply
    279,022.20x = 418,533.30 × 254,527.80
  4. Step 4: Simplify right side
    279,022.20x = 106,528,360,075.74
  5. Step 5: Solve for x
    x = 106,528,360,075.74/279,022.20
  6. Step 6: Final answer
    x = 381,791.70

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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.