Home / 281,346.45-388,258.11-154,022.04

Finding the Fourth Proportional to 281,346.45, 388,258.11 and 154,022.04

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Solution

The fourth proportional to 281,346.45, 388,258.11 and 154,022.04 is: 212,550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,346.45 : 388,258.11 = 154,022.04 : x
  2. Step 2: Convert to fraction form
    281,346.45/388,258.11 = 154,022.04/x
  3. Step 3: Cross multiply
    281,346.45x = 388,258.11 × 154,022.04
  4. Step 4: Simplify right side
    281,346.45x = 59,800,306,148.74
  5. Step 5: Solve for x
    x = 59,800,306,148.74/281,346.45
  6. Step 6: Final answer
    x = 212,550.42

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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.