Home / 281,707.32-388,756.02-154,382.82

Finding the Fourth Proportional to 281,707.32, 388,756.02 and 154,382.82

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Solution

The fourth proportional to 281,707.32, 388,756.02 and 154,382.82 is: 213,048.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,707.32 : 388,756.02 = 154,382.82 : x
  2. Step 2: Convert to fraction form
    281,707.32/388,756.02 = 154,382.82/x
  3. Step 3: Cross multiply
    281,707.32x = 388,756.02 × 154,382.82
  4. Step 4: Simplify right side
    281,707.32x = 60,017,250,659.58
  5. Step 5: Solve for x
    x = 60,017,250,659.58/281,707.32
  6. Step 6: Final answer
    x = 213,048.25

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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.