Home / 315,354.23-435,122.24-200,591.09

Finding the Fourth Proportional to 315,354.23, 435,122.24 and 200,591.09

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Solution

The fourth proportional to 315,354.23, 435,122.24 and 200,591.09 is: 276,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,354.23 : 435,122.24 = 200,591.09 : x
  2. Step 2: Convert to fraction form
    315,354.23/435,122.24 = 200,591.09/x
  3. Step 3: Cross multiply
    315,354.23x = 435,122.24 × 200,591.09
  4. Step 4: Simplify right side
    315,354.23x = 87,281,641,226.28
  5. Step 5: Solve for x
    x = 87,281,641,226.28/315,354.23
  6. Step 6: Final answer
    x = 276,773.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.