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Finding the Fourth Proportional to 383,503.34, 529,252.62 and 213,738.68

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Solution

The fourth proportional to 383,503.34, 529,252.62 and 213,738.68 is: 294,969.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,503.34 : 529,252.62 = 213,738.68 : x
  2. Step 2: Convert to fraction form
    383,503.34/529,252.62 = 213,738.68/x
  3. Step 3: Cross multiply
    383,503.34x = 529,252.62 × 213,738.68
  4. Step 4: Simplify right side
    383,503.34x = 113,121,755,733.33
  5. Step 5: Solve for x
    x = 113,121,755,733.33/383,503.34
  6. Step 6: Final answer
    x = 294,969.42

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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.