Home / 281,913.82-389,058.78-154,589.41

Finding the Fourth Proportional to 281,913.82, 389,058.78 and 154,589.41

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Solution

The fourth proportional to 281,913.82, 389,058.78 and 154,589.41 is: 213,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,913.82 : 389,058.78 = 154,589.41 : x
  2. Step 2: Convert to fraction form
    281,913.82/389,058.78 = 154,589.41/x
  3. Step 3: Cross multiply
    281,913.82x = 389,058.78 × 154,589.41
  4. Step 4: Simplify right side
    281,913.82x = 60,144,367,255.52
  5. Step 5: Solve for x
    x = 60,144,367,255.52/281,913.82
  6. Step 6: Final answer
    x = 213,343.10

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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.