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Finding the Fourth Proportional to 279,556.44, 385,520.76 and 187,882.80

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Solution

The fourth proportional to 279,556.44, 385,520.76 and 187,882.80 is: 259,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,556.44 : 385,520.76 = 187,882.80 : x
  2. Step 2: Convert to fraction form
    279,556.44/385,520.76 = 187,882.80/x
  3. Step 3: Cross multiply
    279,556.44x = 385,520.76 × 187,882.80
  4. Step 4: Simplify right side
    279,556.44x = 72,432,719,846.93
  5. Step 5: Solve for x
    x = 72,432,719,846.93/279,556.44
  6. Step 6: Final answer
    x = 259,098.73

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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.