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Finding the Fourth Proportional to 303,396.60, 454,438.80 and 197,108.40

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Solution

The fourth proportional to 303,396.60, 454,438.80 and 197,108.40 is: 295,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,396.60 : 454,438.80 = 197,108.40 : x
  2. Step 2: Convert to fraction form
    303,396.60/454,438.80 = 197,108.40/x
  3. Step 3: Cross multiply
    303,396.60x = 454,438.80 × 197,108.40
  4. Step 4: Simplify right side
    303,396.60x = 89,573,704,765.92
  5. Step 5: Solve for x
    x = 89,573,704,765.92/303,396.60
  6. Step 6: Final answer
    x = 295,236.35

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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.