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Finding the Fourth Proportional to 358,391.44, 494,554.66 and 213,189.22

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Solution

The fourth proportional to 358,391.44, 494,554.66 and 213,189.22 is: 294,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,391.44 : 494,554.66 = 213,189.22 : x
  2. Step 2: Convert to fraction form
    358,391.44/494,554.66 = 213,189.22/x
  3. Step 3: Cross multiply
    358,391.44x = 494,554.66 × 213,189.22
  4. Step 4: Simplify right side
    358,391.44x = 105,433,722,212.77
  5. Step 5: Solve for x
    x = 105,433,722,212.77/358,391.44
  6. Step 6: Final answer
    x = 294,185.94

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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.