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Finding the Fourth Proportional to 352,805.76, 486,881.28 and 201,951.36

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Solution

The fourth proportional to 352,805.76, 486,881.28 and 201,951.36 is: 278,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,805.76 : 486,881.28 = 201,951.36 : x
  2. Step 2: Convert to fraction form
    352,805.76/486,881.28 = 201,951.36/x
  3. Step 3: Cross multiply
    352,805.76x = 486,881.28 × 201,951.36
  4. Step 4: Simplify right side
    352,805.76x = 98,326,336,654.54
  5. Step 5: Solve for x
    x = 98,326,336,654.54/352,805.76
  6. Step 6: Final answer
    x = 278,698.22

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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.