Home / 313,982.20-434,436.42-273,779.80

Finding the Fourth Proportional to 313,982.20, 434,436.42 and 273,779.80

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Solution

The fourth proportional to 313,982.20, 434,436.42 and 273,779.80 is: 378,811.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,982.20 : 434,436.42 = 273,779.80 : x
  2. Step 2: Convert to fraction form
    313,982.20/434,436.42 = 273,779.80/x
  3. Step 3: Cross multiply
    313,982.20x = 434,436.42 × 273,779.80
  4. Step 4: Simplify right side
    313,982.20x = 118,939,916,180.32
  5. Step 5: Solve for x
    x = 118,939,916,180.32/313,982.20
  6. Step 6: Final answer
    x = 378,811.02

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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.