Home / 270,561.76-405,935.67-120,905.35

Finding the Fourth Proportional to 270,561.76, 405,935.67 and 120,905.35

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Solution

The fourth proportional to 270,561.76, 405,935.67 and 120,905.35 is: 181,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,561.76 : 405,935.67 = 120,905.35 : x
  2. Step 2: Convert to fraction form
    270,561.76/405,935.67 = 120,905.35/x
  3. Step 3: Cross multiply
    270,561.76x = 405,935.67 × 120,905.35
  4. Step 4: Simplify right side
    270,561.76x = 49,079,794,258.83
  5. Step 5: Solve for x
    x = 49,079,794,258.83/270,561.76
  6. Step 6: Final answer
    x = 181,399.60

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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.