Home / 281,266.77-388,157.42-153,942.33

Finding the Fourth Proportional to 281,266.77, 388,157.42 and 153,942.33

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Solution

The fourth proportional to 281,266.77, 388,157.42 and 153,942.33 is: 212,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,266.77 : 388,157.42 = 153,942.33 : x
  2. Step 2: Convert to fraction form
    281,266.77/388,157.42 = 153,942.33/x
  3. Step 3: Cross multiply
    281,266.77x = 388,157.42 × 153,942.33
  4. Step 4: Simplify right side
    281,266.77x = 59,753,858,026.44
  5. Step 5: Solve for x
    x = 59,753,858,026.44/281,266.77
  6. Step 6: Final answer
    x = 212,445.49

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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.