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Finding the Fourth Proportional to 395,298.86, 545,512.62 and 214,010.82

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Solution

The fourth proportional to 395,298.86, 545,512.62 and 214,010.82 is: 295,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,298.86 : 545,512.62 = 214,010.82 : x
  2. Step 2: Convert to fraction form
    395,298.86/545,512.62 = 214,010.82/x
  3. Step 3: Cross multiply
    395,298.86x = 545,512.62 × 214,010.82
  4. Step 4: Simplify right side
    395,298.86x = 116,745,603,126.55
  5. Step 5: Solve for x
    x = 116,745,603,126.55/395,298.86
  6. Step 6: Final answer
    x = 295,335.04

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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.