Home / 379,882.56-524,237.76-210,115.20

Finding the Fourth Proportional to 379,882.56, 524,237.76 and 210,115.20

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Solution

The fourth proportional to 379,882.56, 524,237.76 and 210,115.20 is: 289,958.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,882.56 : 524,237.76 = 210,115.20 : x
  2. Step 2: Convert to fraction form
    379,882.56/524,237.76 = 210,115.20/x
  3. Step 3: Cross multiply
    379,882.56x = 524,237.76 × 210,115.20
  4. Step 4: Simplify right side
    379,882.56x = 110,150,321,789.95
  5. Step 5: Solve for x
    x = 110,150,321,789.95/379,882.56
  6. Step 6: Final answer
    x = 289,958.88

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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.