Home / 312,786.93-432,004.69-205,834.43

Finding the Fourth Proportional to 312,786.93, 432,004.69 and 205,834.43

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Solution

The fourth proportional to 312,786.93, 432,004.69 and 205,834.43 is: 284,287.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,786.93 : 432,004.69 = 205,834.43 : x
  2. Step 2: Convert to fraction form
    312,786.93/432,004.69 = 205,834.43/x
  3. Step 3: Cross multiply
    312,786.93x = 432,004.69 × 205,834.43
  4. Step 4: Simplify right side
    312,786.93x = 88,921,440,460.78
  5. Step 5: Solve for x
    x = 88,921,440,460.78/312,786.93
  6. Step 6: Final answer
    x = 284,287.58

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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.