Home / 228,909.10-343,396.05-71,121.10

Finding the Fourth Proportional to 228,909.10, 343,396.05 and 71,121.10

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Solution

The fourth proportional to 228,909.10, 343,396.05 and 71,121.10 is: 106,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,909.10 : 343,396.05 = 71,121.10 : x
  2. Step 2: Convert to fraction form
    228,909.10/343,396.05 = 71,121.10/x
  3. Step 3: Cross multiply
    228,909.10x = 343,396.05 × 71,121.10
  4. Step 4: Simplify right side
    228,909.10x = 24,422,704,811.66
  5. Step 5: Solve for x
    x = 24,422,704,811.66/228,909.10
  6. Step 6: Final answer
    x = 106,691.72

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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.