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Finding the Fourth Proportional to 252,012.60, 378,456.30 and 133,914.60

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Solution

The fourth proportional to 252,012.60, 378,456.30 and 133,914.60 is: 201,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,012.60 : 378,456.30 = 133,914.60 : x
  2. Step 2: Convert to fraction form
    252,012.60/378,456.30 = 133,914.60/x
  3. Step 3: Cross multiply
    252,012.60x = 378,456.30 × 133,914.60
  4. Step 4: Simplify right side
    252,012.60x = 50,680,824,031.98
  5. Step 5: Solve for x
    x = 50,680,824,031.98/252,012.60
  6. Step 6: Final answer
    x = 201,104.33

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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.