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Finding the Fourth Proportional to 397,399.96, 548,415.64 and 216,113.64

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Solution

The fourth proportional to 397,399.96, 548,415.64 and 216,113.64 is: 298,238.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,399.96 : 548,415.64 = 216,113.64 : x
  2. Step 2: Convert to fraction form
    397,399.96/548,415.64 = 216,113.64/x
  3. Step 3: Cross multiply
    397,399.96x = 548,415.64 × 216,113.64
  4. Step 4: Simplify right side
    397,399.96x = 118,520,100,193.33
  5. Step 5: Solve for x
    x = 118,520,100,193.33/397,399.96
  6. Step 6: Final answer
    x = 298,238.83

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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.