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Finding the Fourth Proportional to 259,163.60, 388,745.40 and 259,163.60

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Solution

The fourth proportional to 259,163.60, 388,745.40 and 259,163.60 is: 388,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,163.60 : 388,745.40 = 259,163.60 : x
  2. Step 2: Convert to fraction form
    259,163.60/388,745.40 = 259,163.60/x
  3. Step 3: Cross multiply
    259,163.60x = 388,745.40 × 259,163.60
  4. Step 4: Simplify right side
    259,163.60x = 100,748,657,347.44
  5. Step 5: Solve for x
    x = 100,748,657,347.44/259,163.60
  6. Step 6: Final answer
    x = 388,745.40

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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.