Home / 281,369.17-388,344.10-213,267.36

Finding the Fourth Proportional to 281,369.17, 388,344.10 and 213,267.36

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Solution

The fourth proportional to 281,369.17, 388,344.10 and 213,267.36 is: 294,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,369.17 : 388,344.10 = 213,267.36 : x
  2. Step 2: Convert to fraction form
    281,369.17/388,344.10 = 213,267.36/x
  3. Step 3: Cross multiply
    281,369.17x = 388,344.10 × 213,267.36
  4. Step 4: Simplify right side
    281,369.17x = 82,821,120,540.88
  5. Step 5: Solve for x
    x = 82,821,120,540.88/281,369.17
  6. Step 6: Final answer
    x = 294,350.37

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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.