Home / 289,029.20-433,535.70-131,257.40

Finding the Fourth Proportional to 289,029.20, 433,535.70 and 131,257.40

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Solution

The fourth proportional to 289,029.20, 433,535.70 and 131,257.40 is: 196,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,029.20 : 433,535.70 = 131,257.40 : x
  2. Step 2: Convert to fraction form
    289,029.20/433,535.70 = 131,257.40/x
  3. Step 3: Cross multiply
    289,029.20x = 433,535.70 × 131,257.40
  4. Step 4: Simplify right side
    289,029.20x = 56,904,768,789.18
  5. Step 5: Solve for x
    x = 56,904,768,789.18/289,029.20
  6. Step 6: Final answer
    x = 196,882.42

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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.