Home / 320,131.14-479,813.10-149,122.32

Finding the Fourth Proportional to 320,131.14, 479,813.10 and 149,122.32

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Solution

The fourth proportional to 320,131.14, 479,813.10 and 149,122.32 is: 223,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,131.14 : 479,813.10 = 149,122.32 : x
  2. Step 2: Convert to fraction form
    320,131.14/479,813.10 = 149,122.32/x
  3. Step 3: Cross multiply
    320,131.14x = 479,813.10 × 149,122.32
  4. Step 4: Simplify right side
    320,131.14x = 71,550,842,638.39
  5. Step 5: Solve for x
    x = 71,550,842,638.39/320,131.14
  6. Step 6: Final answer
    x = 223,504.79

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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.