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Finding the Fourth Proportional to 245,287.76, 338,245.08 and 204,986.48

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Solution

The fourth proportional to 245,287.76, 338,245.08 and 204,986.48 is: 282,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,287.76 : 338,245.08 = 204,986.48 : x
  2. Step 2: Convert to fraction form
    245,287.76/338,245.08 = 204,986.48/x
  3. Step 3: Cross multiply
    245,287.76x = 338,245.08 × 204,986.48
  4. Step 4: Simplify right side
    245,287.76x = 69,335,668,326.52
  5. Step 5: Solve for x
    x = 69,335,668,326.52/245,287.76
  6. Step 6: Final answer
    x = 282,670.72

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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.