Home / 216,584.64-298,896.12-121,091.31

Finding the Fourth Proportional to 216,584.64, 298,896.12 and 121,091.31

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Solution

The fourth proportional to 216,584.64, 298,896.12 and 121,091.31 is: 167,111.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,584.64 : 298,896.12 = 121,091.31 : x
  2. Step 2: Convert to fraction form
    216,584.64/298,896.12 = 121,091.31/x
  3. Step 3: Cross multiply
    216,584.64x = 298,896.12 × 121,091.31
  4. Step 4: Simplify right side
    216,584.64x = 36,193,722,724.72
  5. Step 5: Solve for x
    x = 36,193,722,724.72/216,584.64
  6. Step 6: Final answer
    x = 167,111.22

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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.