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Finding the Fourth Proportional to 251,636.41, 377,480.82 and 80,814.97

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Solution

The fourth proportional to 251,636.41, 377,480.82 and 80,814.97 is: 121,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,636.41 : 377,480.82 = 80,814.97 : x
  2. Step 2: Convert to fraction form
    251,636.41/377,480.82 = 80,814.97/x
  3. Step 3: Cross multiply
    251,636.41x = 377,480.82 × 80,814.97
  4. Step 4: Simplify right side
    251,636.41x = 30,506,099,113.58
  5. Step 5: Solve for x
    x = 30,506,099,113.58/251,636.41
  6. Step 6: Final answer
    x = 121,230.86

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1.5x scale

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.