Home / 209,281.56-311,950.84-192,485.40

Finding the Fourth Proportional to 209,281.56, 311,950.84 and 192,485.40

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Solution

The fourth proportional to 209,281.56, 311,950.84 and 192,485.40 is: 286,914.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,281.56 : 311,950.84 = 192,485.40 : x
  2. Step 2: Convert to fraction form
    209,281.56/311,950.84 = 192,485.40/x
  3. Step 3: Cross multiply
    209,281.56x = 311,950.84 × 192,485.40
  4. Step 4: Simplify right side
    209,281.56x = 60,045,982,217.74
  5. Step 5: Solve for x
    x = 60,045,982,217.74/209,281.56
  6. Step 6: Final answer
    x = 286,914.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.