Home / 279,262.44-385,383.78-151,938.90

Finding the Fourth Proportional to 279,262.44, 385,383.78 and 151,938.90

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Solution

The fourth proportional to 279,262.44, 385,383.78 and 151,938.90 is: 209,676.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,262.44 : 385,383.78 = 151,938.90 : x
  2. Step 2: Convert to fraction form
    279,262.44/385,383.78 = 151,938.90/x
  3. Step 3: Cross multiply
    279,262.44x = 385,383.78 × 151,938.90
  4. Step 4: Simplify right side
    279,262.44x = 58,554,787,611.04
  5. Step 5: Solve for x
    x = 58,554,787,611.04/279,262.44
  6. Step 6: Final answer
    x = 209,676.56

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1.5x scale

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.