Home / 281,698.27-388,746.67-154,371.13

Finding the Fourth Proportional to 281,698.27, 388,746.67 and 154,371.13

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Solution

The fourth proportional to 281,698.27, 388,746.67 and 154,371.13 is: 213,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,698.27 : 388,746.67 = 154,371.13 : x
  2. Step 2: Convert to fraction form
    281,698.27/388,746.67 = 154,371.13/x
  3. Step 3: Cross multiply
    281,698.27x = 388,746.67 × 154,371.13
  4. Step 4: Simplify right side
    281,698.27x = 60,011,260,787.90
  5. Step 5: Solve for x
    x = 60,011,260,787.90/281,698.27
  6. Step 6: Final answer
    x = 213,033.83

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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.