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Finding the Fourth Proportional to 311,205.20, 465,732.60 and 186,635.60

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Solution

The fourth proportional to 311,205.20, 465,732.60 and 186,635.60 is: 279,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,205.20 : 465,732.60 = 186,635.60 : x
  2. Step 2: Convert to fraction form
    311,205.20/465,732.60 = 186,635.60/x
  3. Step 3: Cross multiply
    311,205.20x = 465,732.60 × 186,635.60
  4. Step 4: Simplify right side
    311,205.20x = 86,922,283,240.56
  5. Step 5: Solve for x
    x = 86,922,283,240.56/311,205.20
  6. Step 6: Final answer
    x = 279,308.58

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1.5x scale

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.