Home / 221,226.32-305,592.85-173,431.67

Finding the Fourth Proportional to 221,226.32, 305,592.85 and 173,431.67

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Solution

The fourth proportional to 221,226.32, 305,592.85 and 173,431.67 is: 239,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,226.32 : 305,592.85 = 173,431.67 : x
  2. Step 2: Convert to fraction form
    221,226.32/305,592.85 = 173,431.67/x
  3. Step 3: Cross multiply
    221,226.32x = 305,592.85 × 173,431.67
  4. Step 4: Simplify right side
    221,226.32x = 52,999,476,418.65
  5. Step 5: Solve for x
    x = 52,999,476,418.65/221,226.32
  6. Step 6: Final answer
    x = 239,571.29

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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.