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Finding the Fourth Proportional to 223,479.73, 335,218.74 and 90,358.39

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Solution

The fourth proportional to 223,479.73, 335,218.74 and 90,358.39 is: 135,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,479.73 : 335,218.74 = 90,358.39 : x
  2. Step 2: Convert to fraction form
    223,479.73/335,218.74 = 90,358.39/x
  3. Step 3: Cross multiply
    223,479.73x = 335,218.74 × 90,358.39
  4. Step 4: Simplify right side
    223,479.73x = 30,289,825,644.23
  5. Step 5: Solve for x
    x = 30,289,825,644.23/223,479.73
  6. Step 6: Final answer
    x = 135,537.24

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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.