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Finding the Fourth Proportional to 397,168.04, 548,091.86 and 218,320.04

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Solution

The fourth proportional to 397,168.04, 548,091.86 and 218,320.04 is: 301,281.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,168.04 : 548,091.86 = 218,320.04 : x
  2. Step 2: Convert to fraction form
    397,168.04/548,091.86 = 218,320.04/x
  3. Step 3: Cross multiply
    397,168.04x = 548,091.86 × 218,320.04
  4. Step 4: Simplify right side
    397,168.04x = 119,659,436,798.87
  5. Step 5: Solve for x
    x = 119,659,436,798.87/397,168.04
  6. Step 6: Final answer
    x = 301,281.64

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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.