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Finding the Fourth Proportional to 486,065.82, 670,771.35 and 271,219.80

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Solution

The fourth proportional to 486,065.82, 670,771.35 and 271,219.80 is: 374,283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,065.82 : 670,771.35 = 271,219.80 : x
  2. Step 2: Convert to fraction form
    486,065.82/670,771.35 = 271,219.80/x
  3. Step 3: Cross multiply
    486,065.82x = 670,771.35 × 271,219.80
  4. Step 4: Simplify right side
    486,065.82x = 181,926,471,392.73
  5. Step 5: Solve for x
    x = 181,926,471,392.73/486,065.82
  6. Step 6: Final answer
    x = 374,283.61

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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.