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Finding the Fourth Proportional to 394,087.88, 543,841.90 and 224,322.02

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Solution

The fourth proportional to 394,087.88, 543,841.90 and 224,322.02 is: 309,564.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,087.88 : 543,841.90 = 224,322.02 : x
  2. Step 2: Convert to fraction form
    394,087.88/543,841.90 = 224,322.02/x
  3. Step 3: Cross multiply
    394,087.88x = 543,841.90 × 224,322.02
  4. Step 4: Simplify right side
    394,087.88x = 121,995,710,288.62
  5. Step 5: Solve for x
    x = 121,995,710,288.62/394,087.88
  6. Step 6: Final answer
    x = 309,564.74

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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.