Home / 358,138.85-494,301.73-205,279.43

Finding the Fourth Proportional to 358,138.85, 494,301.73 and 205,279.43

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Solution

The fourth proportional to 358,138.85, 494,301.73 and 205,279.43 is: 283,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,138.85 : 494,301.73 = 205,279.43 : x
  2. Step 2: Convert to fraction form
    358,138.85/494,301.73 = 205,279.43/x
  3. Step 3: Cross multiply
    358,138.85x = 494,301.73 × 205,279.43
  4. Step 4: Simplify right side
    358,138.85x = 101,469,977,382.41
  5. Step 5: Solve for x
    x = 101,469,977,382.41/358,138.85
  6. Step 6: Final answer
    x = 283,325.80

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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.