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Finding the Fourth Proportional to 251,120.80, 376,681.20 and 225,751.60

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Solution

The fourth proportional to 251,120.80, 376,681.20 and 225,751.60 is: 338,627.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,120.80 : 376,681.20 = 225,751.60 : x
  2. Step 2: Convert to fraction form
    251,120.80/376,681.20 = 225,751.60/x
  3. Step 3: Cross multiply
    251,120.80x = 376,681.20 × 225,751.60
  4. Step 4: Simplify right side
    251,120.80x = 85,036,383,589.92
  5. Step 5: Solve for x
    x = 85,036,383,589.92/251,120.80
  6. Step 6: Final answer
    x = 338,627.40

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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.