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Finding the Fourth Proportional to 321,786.60, 482,524.38 and 188,710.08

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Solution

The fourth proportional to 321,786.60, 482,524.38 and 188,710.08 is: 282,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,786.60 : 482,524.38 = 188,710.08 : x
  2. Step 2: Convert to fraction form
    321,786.60/482,524.38 = 188,710.08/x
  3. Step 3: Cross multiply
    321,786.60x = 482,524.38 × 188,710.08
  4. Step 4: Simplify right side
    321,786.60x = 91,057,214,351.75
  5. Step 5: Solve for x
    x = 91,057,214,351.75/321,786.60
  6. Step 6: Final answer
    x = 282,973.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.