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Finding the Fourth Proportional to 352,399.47, 486,311.08 and 199,434.89

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Solution

The fourth proportional to 352,399.47, 486,311.08 and 199,434.89 is: 275,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,399.47 : 486,311.08 = 199,434.89 : x
  2. Step 2: Convert to fraction form
    352,399.47/486,311.08 = 199,434.89/x
  3. Step 3: Cross multiply
    352,399.47x = 486,311.08 × 199,434.89
  4. Step 4: Simplify right side
    352,399.47x = 96,987,393,815.44
  5. Step 5: Solve for x
    x = 96,987,393,815.44/352,399.47
  6. Step 6: Final answer
    x = 275,220.03

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1.5x scale

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.