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Finding the Fourth Proportional to 252,003.60, 378,442.80 and 133,905.60

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Solution

The fourth proportional to 252,003.60, 378,442.80 and 133,905.60 is: 201,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,003.60 : 378,442.80 = 133,905.60 : x
  2. Step 2: Convert to fraction form
    252,003.60/378,442.80 = 133,905.60/x
  3. Step 3: Cross multiply
    252,003.60x = 378,442.80 × 133,905.60
  4. Step 4: Simplify right side
    252,003.60x = 50,675,610,199.68
  5. Step 5: Solve for x
    x = 50,675,610,199.68/252,003.60
  6. Step 6: Final answer
    x = 201,090.82

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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.