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Finding the Fourth Proportional to 223,388.36, 308,589.72 and 203,209.64

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Solution

The fourth proportional to 223,388.36, 308,589.72 and 203,209.64 is: 280,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,388.36 : 308,589.72 = 203,209.64 : x
  2. Step 2: Convert to fraction form
    223,388.36/308,589.72 = 203,209.64/x
  3. Step 3: Cross multiply
    223,388.36x = 308,589.72 × 203,209.64
  4. Step 4: Simplify right side
    223,388.36x = 62,708,405,908.90
  5. Step 5: Solve for x
    x = 62,708,405,908.90/223,388.36
  6. Step 6: Final answer
    x = 280,714.74

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Why These Related Problems?

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