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Finding the Fourth Proportional to 395,992.80, 593,551.80 and 218,627.10

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Solution

The fourth proportional to 395,992.80, 593,551.80 and 218,627.10 is: 327,699.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,992.80 : 593,551.80 = 218,627.10 : x
  2. Step 2: Convert to fraction form
    395,992.80/593,551.80 = 218,627.10/x
  3. Step 3: Cross multiply
    395,992.80x = 593,551.80 × 218,627.10
  4. Step 4: Simplify right side
    395,992.80x = 129,766,508,733.78
  5. Step 5: Solve for x
    x = 129,766,508,733.78/395,992.80
  6. Step 6: Final answer
    x = 327,699.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.