Home / 281,786.04-388,874.70-154,461.60

Finding the Fourth Proportional to 281,786.04, 388,874.70 and 154,461.60

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Solution

The fourth proportional to 281,786.04, 388,874.70 and 154,461.60 is: 213,162.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,786.04 : 388,874.70 = 154,461.60 : x
  2. Step 2: Convert to fraction form
    281,786.04/388,874.70 = 154,461.60/x
  3. Step 3: Cross multiply
    281,786.04x = 388,874.70 × 154,461.60
  4. Step 4: Simplify right side
    281,786.04x = 60,066,208,361.52
  5. Step 5: Solve for x
    x = 60,066,208,361.52/281,786.04
  6. Step 6: Final answer
    x = 213,162.47

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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.