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Finding the Fourth Proportional to 351,967.82, 485,712.66 and 199,036.04

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Solution

The fourth proportional to 351,967.82, 485,712.66 and 199,036.04 is: 274,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,967.82 : 485,712.66 = 199,036.04 : x
  2. Step 2: Convert to fraction form
    351,967.82/485,712.66 = 199,036.04/x
  3. Step 3: Cross multiply
    351,967.82x = 485,712.66 × 199,036.04
  4. Step 4: Simplify right side
    351,967.82x = 96,674,321,995.70
  5. Step 5: Solve for x
    x = 96,674,321,995.70/351,967.82
  6. Step 6: Final answer
    x = 274,668.07

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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.