Home / 400,976.56-553,347.63-219,695.36

Finding the Fourth Proportional to 400,976.56, 553,347.63 and 219,695.36

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Solution

The fourth proportional to 400,976.56, 553,347.63 and 219,695.36 is: 303,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,976.56 : 553,347.63 = 219,695.36 : x
  2. Step 2: Convert to fraction form
    400,976.56/553,347.63 = 219,695.36/x
  3. Step 3: Cross multiply
    400,976.56x = 553,347.63 × 219,695.36
  4. Step 4: Simplify right side
    400,976.56x = 121,567,906,778.00
  5. Step 5: Solve for x
    x = 121,567,906,778.00/400,976.56
  6. Step 6: Final answer
    x = 303,179.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.