Home / 356,508.24-491,968.80-213,183.60

Finding the Fourth Proportional to 356,508.24, 491,968.80 and 213,183.60

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Solution

The fourth proportional to 356,508.24, 491,968.80 and 213,183.60 is: 294,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,508.24 : 491,968.80 = 213,183.60 : x
  2. Step 2: Convert to fraction form
    356,508.24/491,968.80 = 213,183.60/x
  3. Step 3: Cross multiply
    356,508.24x = 491,968.80 × 213,183.60
  4. Step 4: Simplify right side
    356,508.24x = 104,879,679,871.68
  5. Step 5: Solve for x
    x = 104,879,679,871.68/356,508.24
  6. Step 6: Final answer
    x = 294,185.85

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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.