Home / 383,209.45-528,829.19-222,157.84

Finding the Fourth Proportional to 383,209.45, 528,829.19 and 222,157.84

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Solution

The fourth proportional to 383,209.45, 528,829.19 and 222,157.84 is: 306,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,209.45 : 528,829.19 = 222,157.84 : x
  2. Step 2: Convert to fraction form
    383,209.45/528,829.19 = 222,157.84/x
  3. Step 3: Cross multiply
    383,209.45x = 528,829.19 × 222,157.84
  4. Step 4: Simplify right side
    383,209.45x = 117,483,550,579.35
  5. Step 5: Solve for x
    x = 117,483,550,579.35/383,209.45
  6. Step 6: Final answer
    x = 306,577.91

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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.