Home / 281,327.91-388,233.17-154,011.70

Finding the Fourth Proportional to 281,327.91, 388,233.17 and 154,011.70

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Solution

The fourth proportional to 281,327.91, 388,233.17 and 154,011.70 is: 212,536.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,327.91 : 388,233.17 = 154,011.70 : x
  2. Step 2: Convert to fraction form
    281,327.91/388,233.17 = 154,011.70/x
  3. Step 3: Cross multiply
    281,327.91x = 388,233.17 × 154,011.70
  4. Step 4: Simplify right side
    281,327.91x = 59,792,450,508.09
  5. Step 5: Solve for x
    x = 59,792,450,508.09/281,327.91
  6. Step 6: Final answer
    x = 212,536.50

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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.