Home / 281,514.57-388,486.37-154,190.27

Finding the Fourth Proportional to 281,514.57, 388,486.37 and 154,190.27

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Solution

The fourth proportional to 281,514.57, 388,486.37 and 154,190.27 is: 212,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,514.57 : 388,486.37 = 154,190.27 : x
  2. Step 2: Convert to fraction form
    281,514.57/388,486.37 = 154,190.27/x
  3. Step 3: Cross multiply
    281,514.57x = 388,486.37 × 154,190.27
  4. Step 4: Simplify right side
    281,514.57x = 59,900,815,568.24
  5. Step 5: Solve for x
    x = 59,900,815,568.24/281,514.57
  6. Step 6: Final answer
    x = 212,780.52

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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.