Home / 313,039.46-431,982.78-169,794.74

Finding the Fourth Proportional to 313,039.46, 431,982.78 and 169,794.74

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Solution

The fourth proportional to 313,039.46, 431,982.78 and 169,794.74 is: 234,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,039.46 : 431,982.78 = 169,794.74 : x
  2. Step 2: Convert to fraction form
    313,039.46/431,982.78 = 169,794.74/x
  3. Step 3: Cross multiply
    313,039.46x = 431,982.78 × 169,794.74
  4. Step 4: Simplify right side
    313,039.46x = 73,348,403,814.58
  5. Step 5: Solve for x
    x = 73,348,403,814.58/313,039.46
  6. Step 6: Final answer
    x = 234,310.41

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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.