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Finding the Fourth Proportional to 383,609.60, 576,019.20 and 225,958.40

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Solution

The fourth proportional to 383,609.60, 576,019.20 and 225,958.40 is: 339,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,609.60 : 576,019.20 = 225,958.40 : x
  2. Step 2: Convert to fraction form
    383,609.60/576,019.20 = 225,958.40/x
  3. Step 3: Cross multiply
    383,609.60x = 576,019.20 × 225,958.40
  4. Step 4: Simplify right side
    383,609.60x = 130,156,376,801.28
  5. Step 5: Solve for x
    x = 130,156,376,801.28/383,609.60
  6. Step 6: Final answer
    x = 339,293.85

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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.