Home / 276,716.56-381,896-161,988.28

Finding the Fourth Proportional to 276,716.56, 381,896 and 161,988.28

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Solution

The fourth proportional to 276,716.56, 381,896 and 161,988.28 is: 223,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,716.56 : 381,896 = 161,988.28 : x
  2. Step 2: Convert to fraction form
    276,716.56/381,896 = 161,988.28/x
  3. Step 3: Cross multiply
    276,716.56x = 381,896 × 161,988.28
  4. Step 4: Simplify right side
    276,716.56x = 61,862,676,178.88
  5. Step 5: Solve for x
    x = 61,862,676,178.88/276,716.56
  6. Step 6: Final answer
    x = 223,559.72

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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.