Home / 383,363.55-574,845.53-143,280.09

Finding the Fourth Proportional to 383,363.55, 574,845.53 and 143,280.09

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Solution

The fourth proportional to 383,363.55, 574,845.53 and 143,280.09 is: 214,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,363.55 : 574,845.53 = 143,280.09 : x
  2. Step 2: Convert to fraction form
    383,363.55/574,845.53 = 143,280.09/x
  3. Step 3: Cross multiply
    383,363.55x = 574,845.53 × 143,280.09
  4. Step 4: Simplify right side
    383,363.55x = 82,363,918,558.10
  5. Step 5: Solve for x
    x = 82,363,918,558.10/383,363.55
  6. Step 6: Final answer
    x = 214,845.46

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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.