Home / 342,819.71-472,934.19-221,999.93

Finding the Fourth Proportional to 342,819.71, 472,934.19 and 221,999.93

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Solution

The fourth proportional to 342,819.71, 472,934.19 and 221,999.93 is: 306,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,819.71 : 472,934.19 = 221,999.93 : x
  2. Step 2: Convert to fraction form
    342,819.71/472,934.19 = 221,999.93/x
  3. Step 3: Cross multiply
    342,819.71x = 472,934.19 × 221,999.93
  4. Step 4: Simplify right side
    342,819.71x = 104,991,356,067.19
  5. Step 5: Solve for x
    x = 104,991,356,067.19/342,819.71
  6. Step 6: Final answer
    x = 306,258.22

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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.