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Finding the Fourth Proportional to 383,503.50, 529,237.44 and 213,748.56

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Solution

The fourth proportional to 383,503.50, 529,237.44 and 213,748.56 is: 294,974.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,503.50 : 529,237.44 = 213,748.56 : x
  2. Step 2: Convert to fraction form
    383,503.50/529,237.44 = 213,748.56/x
  3. Step 3: Cross multiply
    383,503.50x = 529,237.44 × 213,748.56
  4. Step 4: Simplify right side
    383,503.50x = 113,123,740,698.09
  5. Step 5: Solve for x
    x = 113,123,740,698.09/383,503.50
  6. Step 6: Final answer
    x = 294,974.47

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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.