Home / 355,109.80-490,049.70-193,963.24

Finding the Fourth Proportional to 355,109.80, 490,049.70 and 193,963.24

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Solution

The fourth proportional to 355,109.80, 490,049.70 and 193,963.24 is: 267,668.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,109.80 : 490,049.70 = 193,963.24 : x
  2. Step 2: Convert to fraction form
    355,109.80/490,049.70 = 193,963.24/x
  3. Step 3: Cross multiply
    355,109.80x = 490,049.70 × 193,963.24
  4. Step 4: Simplify right side
    355,109.80x = 95,051,627,573.03
  5. Step 5: Solve for x
    x = 95,051,627,573.03/355,109.80
  6. Step 6: Final answer
    x = 267,668.27

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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.