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Finding the Fourth Proportional to 214,871.63, 321,864.58 and 125,855.27

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Solution

The fourth proportional to 214,871.63, 321,864.58 and 125,855.27 is: 188,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,871.63 : 321,864.58 = 125,855.27 : x
  2. Step 2: Convert to fraction form
    214,871.63/321,864.58 = 125,855.27/x
  3. Step 3: Cross multiply
    214,871.63x = 321,864.58 × 125,855.27
  4. Step 4: Simplify right side
    214,871.63x = 40,508,351,380.74
  5. Step 5: Solve for x
    x = 40,508,351,380.74/214,871.63
  6. Step 6: Final answer
    x = 188,523.50

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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.