Home / 305,823.92-422,584.60-239,261.36

Finding the Fourth Proportional to 305,823.92, 422,584.60 and 239,261.36

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Solution

The fourth proportional to 305,823.92, 422,584.60 and 239,261.36 is: 330,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,823.92 : 422,584.60 = 239,261.36 : x
  2. Step 2: Convert to fraction form
    305,823.92/422,584.60 = 239,261.36/x
  3. Step 3: Cross multiply
    305,823.92x = 422,584.60 × 239,261.36
  4. Step 4: Simplify right side
    305,823.92x = 101,108,166,111.06
  5. Step 5: Solve for x
    x = 101,108,166,111.06/305,823.92
  6. Step 6: Final answer
    x = 330,609.08

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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.