Home / 372,021.09-513,366.09-208,668.60

Finding the Fourth Proportional to 372,021.09, 513,366.09 and 208,668.60

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Solution

The fourth proportional to 372,021.09, 513,366.09 and 208,668.60 is: 287,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,021.09 : 513,366.09 = 208,668.60 : x
  2. Step 2: Convert to fraction form
    372,021.09/513,366.09 = 208,668.60/x
  3. Step 3: Cross multiply
    372,021.09x = 513,366.09 × 208,668.60
  4. Step 4: Simplify right side
    372,021.09x = 107,123,383,287.77
  5. Step 5: Solve for x
    x = 107,123,383,287.77/372,021.09
  6. Step 6: Final answer
    x = 287,949.76

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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.