Home / 320,209.35-480,323.75-109,844.25

Finding the Fourth Proportional to 320,209.35, 480,323.75 and 109,844.25

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Solution

The fourth proportional to 320,209.35, 480,323.75 and 109,844.25 is: 164,769.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,209.35 : 480,323.75 = 109,844.25 : x
  2. Step 2: Convert to fraction form
    320,209.35/480,323.75 = 109,844.25/x
  3. Step 3: Cross multiply
    320,209.35x = 480,323.75 × 109,844.25
  4. Step 4: Simplify right side
    320,209.35x = 52,760,801,526.72
  5. Step 5: Solve for x
    x = 52,760,801,526.72/320,209.35
  6. Step 6: Final answer
    x = 164,769.71

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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.