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Finding the Fourth Proportional to 217,582, 326,873.31 and 154,555.36

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Solution

The fourth proportional to 217,582, 326,873.31 and 154,555.36 is: 232,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,582 : 326,873.31 = 154,555.36 : x
  2. Step 2: Convert to fraction form
    217,582/326,873.31 = 154,555.36/x
  3. Step 3: Cross multiply
    217,582x = 326,873.31 × 154,555.36
  4. Step 4: Simplify right side
    217,582x = 50,520,022,101.44
  5. Step 5: Solve for x
    x = 50,520,022,101.44/217,582
  6. Step 6: Final answer
    x = 232,188.43

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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.