Home / 251,380.88-376,991.18-82,869.80

Finding the Fourth Proportional to 251,380.88, 376,991.18 and 82,869.80

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Solution

The fourth proportional to 251,380.88, 376,991.18 and 82,869.80 is: 124,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,380.88 : 376,991.18 = 82,869.80 : x
  2. Step 2: Convert to fraction form
    251,380.88/376,991.18 = 82,869.80/x
  3. Step 3: Cross multiply
    251,380.88x = 376,991.18 × 82,869.80
  4. Step 4: Simplify right side
    251,380.88x = 31,241,183,688.36
  5. Step 5: Solve for x
    x = 31,241,183,688.36/251,380.88
  6. Step 6: Final answer
    x = 124,278.28

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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.