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Finding the Fourth Proportional to 223,424.72, 335,375.80 and 90,391.92

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Solution

The fourth proportional to 223,424.72, 335,375.80 and 90,391.92 is: 135,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,424.72 : 335,375.80 = 90,391.92 : x
  2. Step 2: Convert to fraction form
    223,424.72/335,375.80 = 90,391.92/x
  3. Step 3: Cross multiply
    223,424.72x = 335,375.80 × 90,391.92
  4. Step 4: Simplify right side
    223,424.72x = 30,315,262,483.54
  5. Step 5: Solve for x
    x = 30,315,262,483.54/223,424.72
  6. Step 6: Final answer
    x = 135,684.46

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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.