Home / 251,039.10-376,439.85-145,890.30

Finding the Fourth Proportional to 251,039.10, 376,439.85 and 145,890.30

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Solution

The fourth proportional to 251,039.10, 376,439.85 and 145,890.30 is: 218,766.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,039.10 : 376,439.85 = 145,890.30 : x
  2. Step 2: Convert to fraction form
    251,039.10/376,439.85 = 145,890.30/x
  3. Step 3: Cross multiply
    251,039.10x = 376,439.85 × 145,890.30
  4. Step 4: Simplify right side
    251,039.10x = 54,918,922,648.46
  5. Step 5: Solve for x
    x = 54,918,922,648.46/251,039.10
  6. Step 6: Final answer
    x = 218,766.41

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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.