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Finding the Fourth Proportional to 327,114.60, 490,671.90 and 309,618.60

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Solution

The fourth proportional to 327,114.60, 490,671.90 and 309,618.60 is: 464,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,114.60 : 490,671.90 = 309,618.60 : x
  2. Step 2: Convert to fraction form
    327,114.60/490,671.90 = 309,618.60/x
  3. Step 3: Cross multiply
    327,114.60x = 490,671.90 × 309,618.60
  4. Step 4: Simplify right side
    327,114.60x = 151,921,146,737.34
  5. Step 5: Solve for x
    x = 151,921,146,737.34/327,114.60
  6. Step 6: Final answer
    x = 464,427.90

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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.