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Finding the Fourth Proportional to 395,475.71, 545,753.77 and 214,183.50

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Solution

The fourth proportional to 395,475.71, 545,753.77 and 214,183.50 is: 295,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,475.71 : 545,753.77 = 214,183.50 : x
  2. Step 2: Convert to fraction form
    395,475.71/545,753.77 = 214,183.50/x
  3. Step 3: Cross multiply
    395,475.71x = 545,753.77 × 214,183.50
  4. Step 4: Simplify right side
    395,475.71x = 116,891,452,061.34
  5. Step 5: Solve for x
    x = 116,891,452,061.34/395,475.71
  6. Step 6: Final answer
    x = 295,571.76

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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.