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Finding the Fourth Proportional to 395,096.90, 545,237.57 and 213,812.60

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Solution

The fourth proportional to 395,096.90, 545,237.57 and 213,812.60 is: 295,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,096.90 : 545,237.57 = 213,812.60 : x
  2. Step 2: Convert to fraction form
    395,096.90/545,237.57 = 213,812.60/x
  3. Step 3: Cross multiply
    395,096.90x = 545,237.57 × 213,812.60
  4. Step 4: Simplify right side
    395,096.90x = 116,578,659,677.68
  5. Step 5: Solve for x
    x = 116,578,659,677.68/395,096.90
  6. Step 6: Final answer
    x = 295,063.46

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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.