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Finding the Fourth Proportional to 313,969.68, 434,419.08 and 273,767.22

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Solution

The fourth proportional to 313,969.68, 434,419.08 and 273,767.22 is: 378,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,969.68 : 434,419.08 = 273,767.22 : x
  2. Step 2: Convert to fraction form
    313,969.68/434,419.08 = 273,767.22/x
  3. Step 3: Cross multiply
    313,969.68x = 434,419.08 × 273,767.22
  4. Step 4: Simplify right side
    313,969.68x = 118,929,703,846.56
  5. Step 5: Solve for x
    x = 118,929,703,846.56/313,969.68
  6. Step 6: Final answer
    x = 378,793.60

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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.