Home / 371,930.30-513,395.46-221,025.50

Finding the Fourth Proportional to 371,930.30, 513,395.46 and 221,025.50

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Solution

The fourth proportional to 371,930.30, 513,395.46 and 221,025.50 is: 305,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,930.30 : 513,395.46 = 221,025.50 : x
  2. Step 2: Convert to fraction form
    371,930.30/513,395.46 = 221,025.50/x
  3. Step 3: Cross multiply
    371,930.30x = 513,395.46 × 221,025.50
  4. Step 4: Simplify right side
    371,930.30x = 113,473,488,244.23
  5. Step 5: Solve for x
    x = 113,473,488,244.23/371,930.30
  6. Step 6: Final answer
    x = 305,093.42

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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.