Home / 340,112.20-509,585.10-221,722.60

Finding the Fourth Proportional to 340,112.20, 509,585.10 and 221,722.60

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Solution

The fourth proportional to 340,112.20, 509,585.10 and 221,722.60 is: 332,203.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,112.20 : 509,585.10 = 221,722.60 : x
  2. Step 2: Convert to fraction form
    340,112.20/509,585.10 = 221,722.60/x
  3. Step 3: Cross multiply
    340,112.20x = 509,585.10 × 221,722.60
  4. Step 4: Simplify right side
    340,112.20x = 112,986,533,293.26
  5. Step 5: Solve for x
    x = 112,986,533,293.26/340,112.20
  6. Step 6: Final answer
    x = 332,203.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.