Home / 217,913.31-326,891.21-84,804.39

Finding the Fourth Proportional to 217,913.31, 326,891.21 and 84,804.39

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Solution

The fourth proportional to 217,913.31, 326,891.21 and 84,804.39 is: 127,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,913.31 : 326,891.21 = 84,804.39 : x
  2. Step 2: Convert to fraction form
    217,913.31/326,891.21 = 84,804.39/x
  3. Step 3: Cross multiply
    217,913.31x = 326,891.21 × 84,804.39
  4. Step 4: Simplify right side
    217,913.31x = 27,721,809,236.39
  5. Step 5: Solve for x
    x = 27,721,809,236.39/217,913.31
  6. Step 6: Final answer
    x = 127,214.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.