Home / 200,419.70-276,579.25-109,777.18

Finding the Fourth Proportional to 200,419.70, 276,579.25 and 109,777.18

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Solution

The fourth proportional to 200,419.70, 276,579.25 and 109,777.18 is: 151,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,419.70 : 276,579.25 = 109,777.18 : x
  2. Step 2: Convert to fraction form
    200,419.70/276,579.25 = 109,777.18/x
  3. Step 3: Cross multiply
    200,419.70x = 276,579.25 × 109,777.18
  4. Step 4: Simplify right side
    200,419.70x = 30,362,091,213.96
  5. Step 5: Solve for x
    x = 30,362,091,213.96/200,419.70
  6. Step 6: Final answer
    x = 151,492.55

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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.