Home / 383,987.20-529,897.74-211,906.48

Finding the Fourth Proportional to 383,987.20, 529,897.74 and 211,906.48

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Solution

The fourth proportional to 383,987.20, 529,897.74 and 211,906.48 is: 292,428.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,987.20 : 529,897.74 = 211,906.48 : x
  2. Step 2: Convert to fraction form
    383,987.20/529,897.74 = 211,906.48/x
  3. Step 3: Cross multiply
    383,987.20x = 529,897.74 × 211,906.48
  4. Step 4: Simplify right side
    383,987.20x = 112,288,764,843.36
  5. Step 5: Solve for x
    x = 112,288,764,843.36/383,987.20
  6. Step 6: Final answer
    x = 292,428.41

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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.