Home / 252,731.37-378,970.30-84,192.45

Finding the Fourth Proportional to 252,731.37, 378,970.30 and 84,192.45

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Solution

The fourth proportional to 252,731.37, 378,970.30 and 84,192.45 is: 126,246.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,731.37 : 378,970.30 = 84,192.45 : x
  2. Step 2: Convert to fraction form
    252,731.37/378,970.30 = 84,192.45/x
  3. Step 3: Cross multiply
    252,731.37x = 378,970.30 × 84,192.45
  4. Step 4: Simplify right side
    252,731.37x = 31,906,436,244.75
  5. Step 5: Solve for x
    x = 31,906,436,244.75/252,731.37
  6. Step 6: Final answer
    x = 126,246.44

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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.