Home / 235,627.20-352,922.40-209,361.60

Finding the Fourth Proportional to 235,627.20, 352,922.40 and 209,361.60

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Solution

The fourth proportional to 235,627.20, 352,922.40 and 209,361.60 is: 313,581.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,627.20 : 352,922.40 = 209,361.60 : x
  2. Step 2: Convert to fraction form
    235,627.20/352,922.40 = 209,361.60/x
  3. Step 3: Cross multiply
    235,627.20x = 352,922.40 × 209,361.60
  4. Step 4: Simplify right side
    235,627.20x = 73,888,398,339.84
  5. Step 5: Solve for x
    x = 73,888,398,339.84/235,627.20
  6. Step 6: Final answer
    x = 313,581.79

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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.