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Finding the Fourth Proportional to 311,196.40, 466,794.60 and 306,530.80

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Solution

The fourth proportional to 311,196.40, 466,794.60 and 306,530.80 is: 459,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,196.40 : 466,794.60 = 306,530.80 : x
  2. Step 2: Convert to fraction form
    311,196.40/466,794.60 = 306,530.80/x
  3. Step 3: Cross multiply
    311,196.40x = 466,794.60 × 306,530.80
  4. Step 4: Simplify right side
    311,196.40x = 143,086,922,173.68
  5. Step 5: Solve for x
    x = 143,086,922,173.68/311,196.40
  6. Step 6: Final answer
    x = 459,796.20

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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.