Home / 355,930.04-491,107.39-210,781.44

Finding the Fourth Proportional to 355,930.04, 491,107.39 and 210,781.44

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Solution

The fourth proportional to 355,930.04, 491,107.39 and 210,781.44 is: 290,833.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,930.04 : 491,107.39 = 210,781.44 : x
  2. Step 2: Convert to fraction form
    355,930.04/491,107.39 = 210,781.44/x
  3. Step 3: Cross multiply
    355,930.04x = 491,107.39 × 210,781.44
  4. Step 4: Simplify right side
    355,930.04x = 103,516,322,331.89
  5. Step 5: Solve for x
    x = 103,516,322,331.89/355,930.04
  6. Step 6: Final answer
    x = 290,833.34

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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.