Home / 281,323.42-388,227.38-154,010.86

Finding the Fourth Proportional to 281,323.42, 388,227.38 and 154,010.86

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Solution

The fourth proportional to 281,323.42, 388,227.38 and 154,010.86 is: 212,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,323.42 : 388,227.38 = 154,010.86 : x
  2. Step 2: Convert to fraction form
    281,323.42/388,227.38 = 154,010.86/x
  3. Step 3: Cross multiply
    281,323.42x = 388,227.38 × 154,010.86
  4. Step 4: Simplify right side
    281,323.42x = 59,791,230,928.72
  5. Step 5: Solve for x
    x = 59,791,230,928.72/281,323.42
  6. Step 6: Final answer
    x = 212,535.56

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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.