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Finding the Fourth Proportional to 355,131.14, 490,062.96 and 193,955.31

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Solution

The fourth proportional to 355,131.14, 490,062.96 and 193,955.31 is: 267,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,131.14 : 490,062.96 = 193,955.31 : x
  2. Step 2: Convert to fraction form
    355,131.14/490,062.96 = 193,955.31/x
  3. Step 3: Cross multiply
    355,131.14x = 490,062.96 × 193,955.31
  4. Step 4: Simplify right side
    355,131.14x = 95,050,313,326.32
  5. Step 5: Solve for x
    x = 95,050,313,326.32/355,131.14
  6. Step 6: Final answer
    x = 267,648.49

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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.