Home / 226,196.82-312,176.57-129,409.65

Finding the Fourth Proportional to 226,196.82, 312,176.57 and 129,409.65

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Solution

The fourth proportional to 226,196.82, 312,176.57 and 129,409.65 is: 178,599.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,196.82 : 312,176.57 = 129,409.65 : x
  2. Step 2: Convert to fraction form
    226,196.82/312,176.57 = 129,409.65/x
  3. Step 3: Cross multiply
    226,196.82x = 312,176.57 × 129,409.65
  4. Step 4: Simplify right side
    226,196.82x = 40,398,660,014.85
  5. Step 5: Solve for x
    x = 40,398,660,014.85/226,196.82
  6. Step 6: Final answer
    x = 178,599.59

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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.