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Finding the Fourth Proportional to 223,499.64, 335,216.68 and 90,376.96

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Solution

The fourth proportional to 223,499.64, 335,216.68 and 90,376.96 is: 135,552.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,499.64 : 335,216.68 = 90,376.96 : x
  2. Step 2: Convert to fraction form
    223,499.64/335,216.68 = 90,376.96/x
  3. Step 3: Cross multiply
    223,499.64x = 335,216.68 × 90,376.96
  4. Step 4: Simplify right side
    223,499.64x = 30,295,864,479.69
  5. Step 5: Solve for x
    x = 30,295,864,479.69/223,499.64
  6. Step 6: Final answer
    x = 135,552.18

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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.