Home / 347,635.79-479,668.04-211,578.60

Finding the Fourth Proportional to 347,635.79, 479,668.04 and 211,578.60

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Solution

The fourth proportional to 347,635.79, 479,668.04 and 211,578.60 is: 291,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,635.79 : 479,668.04 = 211,578.60 : x
  2. Step 2: Convert to fraction form
    347,635.79/479,668.04 = 211,578.60/x
  3. Step 3: Cross multiply
    347,635.79x = 479,668.04 × 211,578.60
  4. Step 4: Simplify right side
    347,635.79x = 101,487,492,367.94
  5. Step 5: Solve for x
    x = 101,487,492,367.94/347,635.79
  6. Step 6: Final answer
    x = 291,936.26

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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.