Home / 285,067.72-393,434.98-164,185.48

Finding the Fourth Proportional to 285,067.72, 393,434.98 and 164,185.48

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Solution

The fourth proportional to 285,067.72, 393,434.98 and 164,185.48 is: 226,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,067.72 : 393,434.98 = 164,185.48 : x
  2. Step 2: Convert to fraction form
    285,067.72/393,434.98 = 164,185.48/x
  3. Step 3: Cross multiply
    285,067.72x = 393,434.98 × 164,185.48
  4. Step 4: Simplify right side
    285,067.72x = 64,596,311,040.09
  5. Step 5: Solve for x
    x = 64,596,311,040.09/285,067.72
  6. Step 6: Final answer
    x = 226,599.88

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1.5x scale

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.