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Finding the Fourth Proportional to 324,283.50, 447,474.78 and 188,300.70

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Solution

The fourth proportional to 324,283.50, 447,474.78 and 188,300.70 is: 259,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,283.50 : 447,474.78 = 188,300.70 : x
  2. Step 2: Convert to fraction form
    324,283.50/447,474.78 = 188,300.70/x
  3. Step 3: Cross multiply
    324,283.50x = 447,474.78 × 188,300.70
  4. Step 4: Simplify right side
    324,283.50x = 84,259,814,306.35
  5. Step 5: Solve for x
    x = 84,259,814,306.35/324,283.50
  6. Step 6: Final answer
    x = 259,833.80

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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.