Home / 228,764.20-343,539.96-218,922.72

Finding the Fourth Proportional to 228,764.20, 343,539.96 and 218,922.72

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Solution

The fourth proportional to 228,764.20, 343,539.96 and 218,922.72 is: 328,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,764.20 : 343,539.96 = 218,922.72 : x
  2. Step 2: Convert to fraction form
    228,764.20/343,539.96 = 218,922.72/x
  3. Step 3: Cross multiply
    228,764.20x = 343,539.96 × 218,922.72
  4. Step 4: Simplify right side
    228,764.20x = 75,208,702,471.89
  5. Step 5: Solve for x
    x = 75,208,702,471.89/228,764.20
  6. Step 6: Final answer
    x = 328,760.80

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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.