Home / 281,869.64-388,977.14-154,544.92

Finding the Fourth Proportional to 281,869.64, 388,977.14 and 154,544.92

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Solution

The fourth proportional to 281,869.64, 388,977.14 and 154,544.92 is: 213,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,869.64 : 388,977.14 = 154,544.92 : x
  2. Step 2: Convert to fraction form
    281,869.64/388,977.14 = 154,544.92/x
  3. Step 3: Cross multiply
    281,869.64x = 388,977.14 × 154,544.92
  4. Step 4: Simplify right side
    281,869.64x = 60,114,440,983.13
  5. Step 5: Solve for x
    x = 60,114,440,983.13/281,869.64
  6. Step 6: Final answer
    x = 213,270.36

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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.