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Finding the Fourth Proportional to 213,390.48, 294,453.76 and 117,891.48

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Solution

The fourth proportional to 213,390.48, 294,453.76 and 117,891.48 is: 162,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,390.48 : 294,453.76 = 117,891.48 : x
  2. Step 2: Convert to fraction form
    213,390.48/294,453.76 = 117,891.48/x
  3. Step 3: Cross multiply
    213,390.48x = 294,453.76 × 117,891.48
  4. Step 4: Simplify right side
    213,390.48x = 34,713,589,557.96
  5. Step 5: Solve for x
    x = 34,713,589,557.96/213,390.48
  6. Step 6: Final answer
    x = 162,676.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.