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Finding the Fourth Proportional to 397,241.46, 548,186.67 and 215,957.88

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Solution

The fourth proportional to 397,241.46, 548,186.67 and 215,957.88 is: 298,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,241.46 : 548,186.67 = 215,957.88 : x
  2. Step 2: Convert to fraction form
    397,241.46/548,186.67 = 215,957.88/x
  3. Step 3: Cross multiply
    397,241.46x = 548,186.67 × 215,957.88
  4. Step 4: Simplify right side
    397,241.46x = 118,385,231,097.46
  5. Step 5: Solve for x
    x = 118,385,231,097.46/397,241.46
  6. Step 6: Final answer
    x = 298,018.32

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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.