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Finding the Fourth Proportional to 303,019.40, 454,529.10 and 134,474.60

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Solution

The fourth proportional to 303,019.40, 454,529.10 and 134,474.60 is: 201,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,019.40 : 454,529.10 = 134,474.60 : x
  2. Step 2: Convert to fraction form
    303,019.40/454,529.10 = 134,474.60/x
  3. Step 3: Cross multiply
    303,019.40x = 454,529.10 × 134,474.60
  4. Step 4: Simplify right side
    303,019.40x = 61,122,618,910.86
  5. Step 5: Solve for x
    x = 61,122,618,910.86/303,019.40
  6. Step 6: Final answer
    x = 201,711.90

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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.