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Finding the Fourth Proportional to 395,357.52, 545,591.04 and 214,065.70

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Solution

The fourth proportional to 395,357.52, 545,591.04 and 214,065.70 is: 295,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,357.52 : 545,591.04 = 214,065.70 : x
  2. Step 2: Convert to fraction form
    395,357.52/545,591.04 = 214,065.70/x
  3. Step 3: Cross multiply
    395,357.52x = 545,591.04 × 214,065.70
  4. Step 4: Simplify right side
    395,357.52x = 116,792,327,891.33
  5. Step 5: Solve for x
    x = 116,792,327,891.33/395,357.52
  6. Step 6: Final answer
    x = 295,409.40

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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.