Home / 383,911.10-576,125.85-215,431.10

Finding the Fourth Proportional to 383,911.10, 576,125.85 and 215,431.10

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Solution

The fourth proportional to 383,911.10, 576,125.85 and 215,431.10 is: 323,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,911.10 : 576,125.85 = 215,431.10 : x
  2. Step 2: Convert to fraction form
    383,911.10/576,125.85 = 215,431.10/x
  3. Step 3: Cross multiply
    383,911.10x = 576,125.85 × 215,431.10
  4. Step 4: Simplify right side
    383,911.10x = 124,115,425,603.94
  5. Step 5: Solve for x
    x = 124,115,425,603.94/383,911.10
  6. Step 6: Final answer
    x = 323,292.10

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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.