Home / 305,823.36-422,021.82-169,866.06

Finding the Fourth Proportional to 305,823.36, 422,021.82 and 169,866.06

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Solution

The fourth proportional to 305,823.36, 422,021.82 and 169,866.06 is: 234,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,823.36 : 422,021.82 = 169,866.06 : x
  2. Step 2: Convert to fraction form
    305,823.36/422,021.82 = 169,866.06/x
  3. Step 3: Cross multiply
    305,823.36x = 422,021.82 × 169,866.06
  4. Step 4: Simplify right side
    305,823.36x = 71,687,183,797.43
  5. Step 5: Solve for x
    x = 71,687,183,797.43/305,823.36
  6. Step 6: Final answer
    x = 234,407.16

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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.