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Finding the Fourth Proportional to 331,455.80, 457,412.12 and 188,219.04

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Solution

The fourth proportional to 331,455.80, 457,412.12 and 188,219.04 is: 259,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,455.80 : 457,412.12 = 188,219.04 : x
  2. Step 2: Convert to fraction form
    331,455.80/457,412.12 = 188,219.04/x
  3. Step 3: Cross multiply
    331,455.80x = 457,412.12 × 188,219.04
  4. Step 4: Simplify right side
    331,455.80x = 86,093,669,169.67
  5. Step 5: Solve for x
    x = 86,093,669,169.67/331,455.80
  6. Step 6: Final answer
    x = 259,744.05

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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.