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Finding the Fourth Proportional to 259,226.80, 388,840.20 and 92,993.20

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Solution

The fourth proportional to 259,226.80, 388,840.20 and 92,993.20 is: 139,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,226.80 : 388,840.20 = 92,993.20 : x
  2. Step 2: Convert to fraction form
    259,226.80/388,840.20 = 92,993.20/x
  3. Step 3: Cross multiply
    259,226.80x = 388,840.20 × 92,993.20
  4. Step 4: Simplify right side
    259,226.80x = 36,159,494,486.64
  5. Step 5: Solve for x
    x = 36,159,494,486.64/259,226.80
  6. Step 6: Final answer
    x = 139,489.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.