Home / 379,257.48-523,391.23-218,112.65

Finding the Fourth Proportional to 379,257.48, 523,391.23 and 218,112.65

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Solution

The fourth proportional to 379,257.48, 523,391.23 and 218,112.65 is: 301,004.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,257.48 : 523,391.23 = 218,112.65 : x
  2. Step 2: Convert to fraction form
    379,257.48/523,391.23 = 218,112.65/x
  3. Step 3: Cross multiply
    379,257.48x = 523,391.23 × 218,112.65
  4. Step 4: Simplify right side
    379,257.48x = 114,158,249,497.65
  5. Step 5: Solve for x
    x = 114,158,249,497.65/379,257.48
  6. Step 6: Final answer
    x = 301,004.61

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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.