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Finding the Fourth Proportional to 393,867, 543,533.60 and 224,110.44

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Solution

The fourth proportional to 393,867, 543,533.60 and 224,110.44 is: 309,270.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,867 : 543,533.60 = 224,110.44 : x
  2. Step 2: Convert to fraction form
    393,867/543,533.60 = 224,110.44/x
  3. Step 3: Cross multiply
    393,867x = 543,533.60 × 224,110.44
  4. Step 4: Simplify right side
    393,867x = 121,811,554,250.78
  5. Step 5: Solve for x
    x = 121,811,554,250.78/393,867
  6. Step 6: Final answer
    x = 309,270.78

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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.