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Finding the Fourth Proportional to 223,416.64, 335,363.70 and 90,383.86

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Solution

The fourth proportional to 223,416.64, 335,363.70 and 90,383.86 is: 135,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,416.64 : 335,363.70 = 90,383.86 : x
  2. Step 2: Convert to fraction form
    223,416.64/335,363.70 = 90,383.86/x
  3. Step 3: Cross multiply
    223,416.64x = 335,363.70 × 90,383.86
  4. Step 4: Simplify right side
    223,416.64x = 30,311,465,709.88
  5. Step 5: Solve for x
    x = 30,311,465,709.88/223,416.64
  6. Step 6: Final answer
    x = 135,672.37

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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.