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Finding the Fourth Proportional to 352,452.62, 486,637.25 and 216,668.54

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Solution

The fourth proportional to 352,452.62, 486,637.25 and 216,668.54 is: 299,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,452.62 : 486,637.25 = 216,668.54 : x
  2. Step 2: Convert to fraction form
    352,452.62/486,637.25 = 216,668.54/x
  3. Step 3: Cross multiply
    352,452.62x = 486,637.25 × 216,668.54
  4. Step 4: Simplify right side
    352,452.62x = 105,438,978,950.59
  5. Step 5: Solve for x
    x = 105,438,978,950.59/352,452.62
  6. Step 6: Final answer
    x = 299,157.89

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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.