Home / 282,257.87-389,513.21-154,930.73

Finding the Fourth Proportional to 282,257.87, 389,513.21 and 154,930.73

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Solution

The fourth proportional to 282,257.87, 389,513.21 and 154,930.73 is: 213,802.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,257.87 : 389,513.21 = 154,930.73 : x
  2. Step 2: Convert to fraction form
    282,257.87/389,513.21 = 154,930.73/x
  3. Step 3: Cross multiply
    282,257.87x = 389,513.21 × 154,930.73
  4. Step 4: Simplify right side
    282,257.87x = 60,347,563,247.72
  5. Step 5: Solve for x
    x = 60,347,563,247.72/282,257.87
  6. Step 6: Final answer
    x = 213,802.95

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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.