Home / 281,208.28-388,067.44-153,883.88

Finding the Fourth Proportional to 281,208.28, 388,067.44 and 153,883.88

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Solution

The fourth proportional to 281,208.28, 388,067.44 and 153,883.88 is: 212,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,208.28 : 388,067.44 = 153,883.88 : x
  2. Step 2: Convert to fraction form
    281,208.28/388,067.44 = 153,883.88/x
  3. Step 3: Cross multiply
    281,208.28x = 388,067.44 × 153,883.88
  4. Step 4: Simplify right side
    281,208.28x = 59,717,323,368.87
  5. Step 5: Solve for x
    x = 59,717,323,368.87/281,208.28
  6. Step 6: Final answer
    x = 212,359.76

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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.