Home / 276,148.81-381,087.57-153,642.96

Finding the Fourth Proportional to 276,148.81, 381,087.57 and 153,642.96

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Solution

The fourth proportional to 276,148.81, 381,087.57 and 153,642.96 is: 212,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,148.81 : 381,087.57 = 153,642.96 : x
  2. Step 2: Convert to fraction form
    276,148.81/381,087.57 = 153,642.96/x
  3. Step 3: Cross multiply
    276,148.81x = 381,087.57 × 153,642.96
  4. Step 4: Simplify right side
    276,148.81x = 58,551,422,850.17
  5. Step 5: Solve for x
    x = 58,551,422,850.17/276,148.81
  6. Step 6: Final answer
    x = 212,028.52

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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.