Home / 281,350.06-388,263.12-154,025.68

Finding the Fourth Proportional to 281,350.06, 388,263.12 and 154,025.68

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Solution

The fourth proportional to 281,350.06, 388,263.12 and 154,025.68 is: 212,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,350.06 : 388,263.12 = 154,025.68 : x
  2. Step 2: Convert to fraction form
    281,350.06/388,263.12 = 154,025.68/x
  3. Step 3: Cross multiply
    281,350.06x = 388,263.12 × 154,025.68
  4. Step 4: Simplify right side
    281,350.06x = 59,802,491,076.92
  5. Step 5: Solve for x
    x = 59,802,491,076.92/281,350.06
  6. Step 6: Final answer
    x = 212,555.46

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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.