Home / 281,518.03-388,494.93-154,198.18

Finding the Fourth Proportional to 281,518.03, 388,494.93 and 154,198.18

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Solution

The fourth proportional to 281,518.03, 388,494.93 and 154,198.18 is: 212,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,518.03 : 388,494.93 = 154,198.18 : x
  2. Step 2: Convert to fraction form
    281,518.03/388,494.93 = 154,198.18/x
  3. Step 3: Cross multiply
    281,518.03x = 388,494.93 × 154,198.18
  4. Step 4: Simplify right side
    281,518.03x = 59,905,212,209.09
  5. Step 5: Solve for x
    x = 59,905,212,209.09/281,518.03
  6. Step 6: Final answer
    x = 212,793.52

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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.