Home / 205,485.31-308,227.20-55,725.22

Finding the Fourth Proportional to 205,485.31, 308,227.20 and 55,725.22

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Solution

The fourth proportional to 205,485.31, 308,227.20 and 55,725.22 is: 83,587.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,485.31 : 308,227.20 = 55,725.22 : x
  2. Step 2: Convert to fraction form
    205,485.31/308,227.20 = 55,725.22/x
  3. Step 3: Cross multiply
    205,485.31x = 308,227.20 × 55,725.22
  4. Step 4: Simplify right side
    205,485.31x = 17,176,028,529.98
  5. Step 5: Solve for x
    x = 17,176,028,529.98/205,485.31
  6. Step 6: Final answer
    x = 83,587.62

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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.