Home / 291,757.70-434,568.20-278,106.50

Finding the Fourth Proportional to 291,757.70, 434,568.20 and 278,106.50

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Solution

The fourth proportional to 291,757.70, 434,568.20 and 278,106.50 is: 414,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,757.70 : 434,568.20 = 278,106.50 : x
  2. Step 2: Convert to fraction form
    291,757.70/434,568.20 = 278,106.50/x
  3. Step 3: Cross multiply
    291,757.70x = 434,568.20 × 278,106.50
  4. Step 4: Simplify right side
    291,757.70x = 120,856,241,113.30
  5. Step 5: Solve for x
    x = 120,856,241,113.30/291,757.70
  6. Step 6: Final answer
    x = 414,234.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.