Home / 319,865.92-479,799.48-83,208.22

Finding the Fourth Proportional to 319,865.92, 479,799.48 and 83,208.22

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Solution

The fourth proportional to 319,865.92, 479,799.48 and 83,208.22 is: 124,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,865.92 : 479,799.48 = 83,208.22 : x
  2. Step 2: Convert to fraction form
    319,865.92/479,799.48 = 83,208.22/x
  3. Step 3: Cross multiply
    319,865.92x = 479,799.48 × 83,208.22
  4. Step 4: Simplify right side
    319,865.92x = 39,923,259,800.26
  5. Step 5: Solve for x
    x = 39,923,259,800.26/319,865.92
  6. Step 6: Final answer
    x = 124,812.48

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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.