Home / 356,003.25-491,522.34-210,855.70

Finding the Fourth Proportional to 356,003.25, 491,522.34 and 210,855.70

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Solution

The fourth proportional to 356,003.25, 491,522.34 and 210,855.70 is: 291,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,003.25 : 491,522.34 = 210,855.70 : x
  2. Step 2: Convert to fraction form
    356,003.25/491,522.34 = 210,855.70/x
  3. Step 3: Cross multiply
    356,003.25x = 491,522.34 × 210,855.70
  4. Step 4: Simplify right side
    356,003.25x = 103,640,288,471.45
  5. Step 5: Solve for x
    x = 103,640,288,471.45/356,003.25
  6. Step 6: Final answer
    x = 291,121.75

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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.