Home / 281,739.67-388,819.04-154,415.16

Finding the Fourth Proportional to 281,739.67, 388,819.04 and 154,415.16

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Solution

The fourth proportional to 281,739.67, 388,819.04 and 154,415.16 is: 213,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,739.67 : 388,819.04 = 154,415.16 : x
  2. Step 2: Convert to fraction form
    281,739.67/388,819.04 = 154,415.16/x
  3. Step 3: Cross multiply
    281,739.67x = 388,819.04 × 154,415.16
  4. Step 4: Simplify right side
    281,739.67x = 60,039,553,500.57
  5. Step 5: Solve for x
    x = 60,039,553,500.57/281,739.67
  6. Step 6: Final answer
    x = 213,102.95

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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.