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Finding the Fourth Proportional to 223,073.19, 308,446.52 and 219,467.75

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Solution

The fourth proportional to 223,073.19, 308,446.52 and 219,467.75 is: 303,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,073.19 : 308,446.52 = 219,467.75 : x
  2. Step 2: Convert to fraction form
    223,073.19/308,446.52 = 219,467.75/x
  3. Step 3: Cross multiply
    223,073.19x = 308,446.52 × 219,467.75
  4. Step 4: Simplify right side
    223,073.19x = 67,694,061,100.16
  5. Step 5: Solve for x
    x = 67,694,061,100.16/223,073.19
  6. Step 6: Final answer
    x = 303,461.21

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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.