Home / 281,825.63-388,919.39-154,502.13

Finding the Fourth Proportional to 281,825.63, 388,919.39 and 154,502.13

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Solution

The fourth proportional to 281,825.63, 388,919.39 and 154,502.13 is: 213,212.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,825.63 : 388,919.39 = 154,502.13 : x
  2. Step 2: Convert to fraction form
    281,825.63/388,919.39 = 154,502.13/x
  3. Step 3: Cross multiply
    281,825.63x = 388,919.39 × 154,502.13
  4. Step 4: Simplify right side
    281,825.63x = 60,088,873,380.79
  5. Step 5: Solve for x
    x = 60,088,873,380.79/281,825.63
  6. Step 6: Final answer
    x = 213,212.95

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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.