Home / 358,288.88-494,382.20-205,297.64

Finding the Fourth Proportional to 358,288.88, 494,382.20 and 205,297.64

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Solution

The fourth proportional to 358,288.88, 494,382.20 and 205,297.64 is: 283,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,288.88 : 494,382.20 = 205,297.64 : x
  2. Step 2: Convert to fraction form
    358,288.88/494,382.20 = 205,297.64/x
  3. Step 3: Cross multiply
    358,288.88x = 494,382.20 × 205,297.64
  4. Step 4: Simplify right side
    358,288.88x = 101,495,497,320.70
  5. Step 5: Solve for x
    x = 101,495,497,320.70/358,288.88
  6. Step 6: Final answer
    x = 283,278.39

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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.