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Finding the Fourth Proportional to 223,221.60, 334,540.80 and 89,992.80

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Solution

The fourth proportional to 223,221.60, 334,540.80 and 89,992.80 is: 134,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,221.60 : 334,540.80 = 89,992.80 : x
  2. Step 2: Convert to fraction form
    223,221.60/334,540.80 = 89,992.80/x
  3. Step 3: Cross multiply
    223,221.60x = 334,540.80 × 89,992.80
  4. Step 4: Simplify right side
    223,221.60x = 30,106,263,306.24
  5. Step 5: Solve for x
    x = 30,106,263,306.24/223,221.60
  6. Step 6: Final answer
    x = 134,871.64

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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.