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Finding the Fourth Proportional to 311,903.60, 467,855.40 and 303,155.60

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Solution

The fourth proportional to 311,903.60, 467,855.40 and 303,155.60 is: 454,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,903.60 : 467,855.40 = 303,155.60 : x
  2. Step 2: Convert to fraction form
    311,903.60/467,855.40 = 303,155.60/x
  3. Step 3: Cross multiply
    311,903.60x = 467,855.40 × 303,155.60
  4. Step 4: Simplify right side
    311,903.60x = 141,832,984,500.24
  5. Step 5: Solve for x
    x = 141,832,984,500.24/311,903.60
  6. Step 6: Final answer
    x = 454,733.40

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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.