Home / 279,006.72-385,113.60-189,634.56

Finding the Fourth Proportional to 279,006.72, 385,113.60 and 189,634.56

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Solution

The fourth proportional to 279,006.72, 385,113.60 and 189,634.56 is: 261,753.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,006.72 : 385,113.60 = 189,634.56 : x
  2. Step 2: Convert to fraction form
    279,006.72/385,113.60 = 189,634.56/x
  3. Step 3: Cross multiply
    279,006.72x = 385,113.60 × 189,634.56
  4. Step 4: Simplify right side
    279,006.72x = 73,030,848,086.02
  5. Step 5: Solve for x
    x = 73,030,848,086.02/279,006.72
  6. Step 6: Final answer
    x = 261,753.01

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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.