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Finding the Fourth Proportional to 279,232.22, 418,515.42 and 194,533.76

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Solution

The fourth proportional to 279,232.22, 418,515.42 and 194,533.76 is: 291,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,232.22 : 418,515.42 = 194,533.76 : x
  2. Step 2: Convert to fraction form
    279,232.22/418,515.42 = 194,533.76/x
  3. Step 3: Cross multiply
    279,232.22x = 418,515.42 × 194,533.76
  4. Step 4: Simplify right side
    279,232.22x = 81,415,378,270.58
  5. Step 5: Solve for x
    x = 81,415,378,270.58/279,232.22
  6. Step 6: Final answer
    x = 291,568.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.