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Finding the Fourth Proportional to 223,315.80, 334,455.30 and 218,131.80

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Solution

The fourth proportional to 223,315.80, 334,455.30 and 218,131.80 is: 326,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,315.80 : 334,455.30 = 218,131.80 : x
  2. Step 2: Convert to fraction form
    223,315.80/334,455.30 = 218,131.80/x
  3. Step 3: Cross multiply
    223,315.80x = 334,455.30 × 218,131.80
  4. Step 4: Simplify right side
    223,315.80x = 72,955,336,608.54
  5. Step 5: Solve for x
    x = 72,955,336,608.54/223,315.80
  6. Step 6: Final answer
    x = 326,691.33

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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.