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Finding the Fourth Proportional to 395,565.48, 545,882.99 and 214,277.42

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Solution

The fourth proportional to 395,565.48, 545,882.99 and 214,277.42 is: 295,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,565.48 : 545,882.99 = 214,277.42 : x
  2. Step 2: Convert to fraction form
    395,565.48/545,882.99 = 214,277.42/x
  3. Step 3: Cross multiply
    395,565.48x = 545,882.99 × 214,277.42
  4. Step 4: Simplify right side
    395,565.48x = 116,970,394,918.28
  5. Step 5: Solve for x
    x = 116,970,394,918.28/395,565.48
  6. Step 6: Final answer
    x = 295,704.25

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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.