Home / 281,865.62-388,453.01-200,197.58

Finding the Fourth Proportional to 281,865.62, 388,453.01 and 200,197.58

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Solution

The fourth proportional to 281,865.62, 388,453.01 and 200,197.58 is: 275,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,865.62 : 388,453.01 = 200,197.58 : x
  2. Step 2: Convert to fraction form
    281,865.62/388,453.01 = 200,197.58/x
  3. Step 3: Cross multiply
    281,865.62x = 388,453.01 × 200,197.58
  4. Step 4: Simplify right side
    281,865.62x = 77,767,349,602.46
  5. Step 5: Solve for x
    x = 77,767,349,602.46/281,865.62
  6. Step 6: Final answer
    x = 275,902.22

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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.