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Finding the Fourth Proportional to 383,433.60, 575,150.40 and 353,107.20

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Solution

The fourth proportional to 383,433.60, 575,150.40 and 353,107.20 is: 529,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,433.60 : 575,150.40 = 353,107.20 : x
  2. Step 2: Convert to fraction form
    383,433.60/575,150.40 = 353,107.20/x
  3. Step 3: Cross multiply
    383,433.60x = 575,150.40 × 353,107.20
  4. Step 4: Simplify right side
    383,433.60x = 203,089,747,322.88
  5. Step 5: Solve for x
    x = 203,089,747,322.88/383,433.60
  6. Step 6: Final answer
    x = 529,660.80

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1.5x scale

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.