Home / 383,426.21-529,065.95-222,249.78

Finding the Fourth Proportional to 383,426.21, 529,065.95 and 222,249.78

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Solution

The fourth proportional to 383,426.21, 529,065.95 and 222,249.78 is: 306,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,426.21 : 529,065.95 = 222,249.78 : x
  2. Step 2: Convert to fraction form
    383,426.21/529,065.95 = 222,249.78/x
  3. Step 3: Cross multiply
    383,426.21x = 529,065.95 × 222,249.78
  4. Step 4: Simplify right side
    383,426.21x = 117,584,789,881.74
  5. Step 5: Solve for x
    x = 117,584,789,881.74/383,426.21
  6. Step 6: Final answer
    x = 306,668.63

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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.