Home / 276,681.96-381,839.68-154,193.36

Finding the Fourth Proportional to 276,681.96, 381,839.68 and 154,193.36

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Solution

The fourth proportional to 276,681.96, 381,839.68 and 154,193.36 is: 212,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,681.96 : 381,839.68 = 154,193.36 : x
  2. Step 2: Convert to fraction form
    276,681.96/381,839.68 = 154,193.36/x
  3. Step 3: Cross multiply
    276,681.96x = 381,839.68 × 154,193.36
  4. Step 4: Simplify right side
    276,681.96x = 58,877,143,240.52
  5. Step 5: Solve for x
    x = 58,877,143,240.52/276,681.96
  6. Step 6: Final answer
    x = 212,797.19

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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.