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Finding the Fourth Proportional to 252,245.20, 378,175.80 and 127,675.60

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Solution

The fourth proportional to 252,245.20, 378,175.80 and 127,675.60 is: 191,416.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,245.20 : 378,175.80 = 127,675.60 : x
  2. Step 2: Convert to fraction form
    252,245.20/378,175.80 = 127,675.60/x
  3. Step 3: Cross multiply
    252,245.20x = 378,175.80 × 127,675.60
  4. Step 4: Simplify right side
    252,245.20x = 48,283,822,170.48
  5. Step 5: Solve for x
    x = 48,283,822,170.48/252,245.20
  6. Step 6: Final answer
    x = 191,416.22

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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.