Home / 355,256.51-490,471.19-231,195.70

Finding the Fourth Proportional to 355,256.51, 490,471.19 and 231,195.70

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Solution

The fourth proportional to 355,256.51, 490,471.19 and 231,195.70 is: 319,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,256.51 : 490,471.19 = 231,195.70 : x
  2. Step 2: Convert to fraction form
    355,256.51/490,471.19 = 231,195.70/x
  3. Step 3: Cross multiply
    355,256.51x = 490,471.19 × 231,195.70
  4. Step 4: Simplify right side
    355,256.51x = 113,394,829,453.69
  5. Step 5: Solve for x
    x = 113,394,829,453.69/355,256.51
  6. Step 6: Final answer
    x = 319,191.42

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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.