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Finding the Fourth Proportional to 252,383.84, 378,809.04 and 127,812.32

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Solution

The fourth proportional to 252,383.84, 378,809.04 and 127,812.32 is: 191,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,383.84 : 378,809.04 = 127,812.32 : x
  2. Step 2: Convert to fraction form
    252,383.84/378,809.04 = 127,812.32/x
  3. Step 3: Cross multiply
    252,383.84x = 378,809.04 × 127,812.32
  4. Step 4: Simplify right side
    252,383.84x = 48,416,462,239.37
  5. Step 5: Solve for x
    x = 48,416,462,239.37/252,383.84
  6. Step 6: Final answer
    x = 191,836.62

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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.