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Finding the Fourth Proportional to 303,179.74, 454,770.97 and 78,524.21

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Solution

The fourth proportional to 303,179.74, 454,770.97 and 78,524.21 is: 117,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,179.74 : 454,770.97 = 78,524.21 : x
  2. Step 2: Convert to fraction form
    303,179.74/454,770.97 = 78,524.21/x
  3. Step 3: Cross multiply
    303,179.74x = 454,770.97 × 78,524.21
  4. Step 4: Simplify right side
    303,179.74x = 35,710,532,090.80
  5. Step 5: Solve for x
    x = 35,710,532,090.80/303,179.74
  6. Step 6: Final answer
    x = 117,786.67

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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.