Home / 355,241.30-490,450.24-231,180.49

Finding the Fourth Proportional to 355,241.30, 490,450.24 and 231,180.49

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Solution

The fourth proportional to 355,241.30, 490,450.24 and 231,180.49 is: 319,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,241.30 : 490,450.24 = 231,180.49 : x
  2. Step 2: Convert to fraction form
    355,241.30/490,450.24 = 231,180.49/x
  3. Step 3: Cross multiply
    355,241.30x = 490,450.24 × 231,180.49
  4. Step 4: Simplify right side
    355,241.30x = 113,382,526,803.82
  5. Step 5: Solve for x
    x = 113,382,526,803.82/355,241.30
  6. Step 6: Final answer
    x = 319,170.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.