Home / 283,611.50-391,382.19-154,549.70

Finding the Fourth Proportional to 283,611.50, 391,382.19 and 154,549.70

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Solution

The fourth proportional to 283,611.50, 391,382.19 and 154,549.70 is: 213,277.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,611.50 : 391,382.19 = 154,549.70 : x
  2. Step 2: Convert to fraction form
    283,611.50/391,382.19 = 154,549.70/x
  3. Step 3: Cross multiply
    283,611.50x = 391,382.19 × 154,549.70
  4. Step 4: Simplify right side
    283,611.50x = 60,488,000,049.84
  5. Step 5: Solve for x
    x = 60,488,000,049.84/283,611.50
  6. Step 6: Final answer
    x = 213,277.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.