Home / 217,783.08-326,198.34-154,411.11

Finding the Fourth Proportional to 217,783.08, 326,198.34 and 154,411.11

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Solution

The fourth proportional to 217,783.08, 326,198.34 and 154,411.11 is: 231,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,783.08 : 326,198.34 = 154,411.11 : x
  2. Step 2: Convert to fraction form
    217,783.08/326,198.34 = 154,411.11/x
  3. Step 3: Cross multiply
    217,783.08x = 326,198.34 × 154,411.11
  4. Step 4: Simplify right side
    217,783.08x = 50,368,647,759.56
  5. Step 5: Solve for x
    x = 50,368,647,759.56/217,783.08
  6. Step 6: Final answer
    x = 231,278.98

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1.5x scale

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.