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Finding the Fourth Proportional to 311,325.20, 467,133.60 and 161,734.40

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Solution

The fourth proportional to 311,325.20, 467,133.60 and 161,734.40 is: 242,677.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,325.20 : 467,133.60 = 161,734.40 : x
  2. Step 2: Convert to fraction form
    311,325.20/467,133.60 = 161,734.40/x
  3. Step 3: Cross multiply
    311,325.20x = 467,133.60 × 161,734.40
  4. Step 4: Simplify right side
    311,325.20x = 75,551,572,515.84
  5. Step 5: Solve for x
    x = 75,551,572,515.84/311,325.20
  6. Step 6: Final answer
    x = 242,677.34

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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.