Home / 281,933.28-389,067.78-154,611.63

Finding the Fourth Proportional to 281,933.28, 389,067.78 and 154,611.63

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Solution

The fourth proportional to 281,933.28, 389,067.78 and 154,611.63 is: 213,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,933.28 : 389,067.78 = 154,611.63 : x
  2. Step 2: Convert to fraction form
    281,933.28/389,067.78 = 154,611.63/x
  3. Step 3: Cross multiply
    281,933.28x = 389,067.78 × 154,611.63
  4. Step 4: Simplify right side
    281,933.28x = 60,154,403,646.28
  5. Step 5: Solve for x
    x = 60,154,403,646.28/281,933.28
  6. Step 6: Final answer
    x = 213,363.97

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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.