Home / 221,739.47-305,640.97-173,256.62

Finding the Fourth Proportional to 221,739.47, 305,640.97 and 173,256.62

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Solution

The fourth proportional to 221,739.47, 305,640.97 and 173,256.62 is: 238,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,739.47 : 305,640.97 = 173,256.62 : x
  2. Step 2: Convert to fraction form
    221,739.47/305,640.97 = 173,256.62/x
  3. Step 3: Cross multiply
    221,739.47x = 305,640.97 × 173,256.62
  4. Step 4: Simplify right side
    221,739.47x = 52,954,319,434.38
  5. Step 5: Solve for x
    x = 52,954,319,434.38/221,739.47
  6. Step 6: Final answer
    x = 238,813.24

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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.