Home / 319,980.14-479,997.77-83,323.25

Finding the Fourth Proportional to 319,980.14, 479,997.77 and 83,323.25

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Solution

The fourth proportional to 319,980.14, 479,997.77 and 83,323.25 is: 124,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,980.14 : 479,997.77 = 83,323.25 : x
  2. Step 2: Convert to fraction form
    319,980.14/479,997.77 = 83,323.25/x
  3. Step 3: Cross multiply
    319,980.14x = 479,997.77 × 83,323.25
  4. Step 4: Simplify right side
    319,980.14x = 39,994,971,372.55
  5. Step 5: Solve for x
    x = 39,994,971,372.55/319,980.14
  6. Step 6: Final answer
    x = 124,992.04

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1.5x scale

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.