Home / 383,072.33-574,408.95-142,988.79

Finding the Fourth Proportional to 383,072.33, 574,408.95 and 142,988.79

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Solution

The fourth proportional to 383,072.33, 574,408.95 and 142,988.79 is: 214,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,072.33 : 574,408.95 = 142,988.79 : x
  2. Step 2: Convert to fraction form
    383,072.33/574,408.95 = 142,988.79/x
  3. Step 3: Cross multiply
    383,072.33x = 574,408.95 × 142,988.79
  4. Step 4: Simplify right side
    383,072.33x = 82,134,040,010.73
  5. Step 5: Solve for x
    x = 82,134,040,010.73/383,072.33
  6. Step 6: Final answer
    x = 214,408.70

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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.