Home / 352,380.54-486,519.30-209,186.58

Finding the Fourth Proportional to 352,380.54, 486,519.30 and 209,186.58

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Solution

The fourth proportional to 352,380.54, 486,519.30 and 209,186.58 is: 288,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,380.54 : 486,519.30 = 209,186.58 : x
  2. Step 2: Convert to fraction form
    352,380.54/486,519.30 = 209,186.58/x
  3. Step 3: Cross multiply
    352,380.54x = 486,519.30 × 209,186.58
  4. Step 4: Simplify right side
    352,380.54x = 101,773,308,470.99
  5. Step 5: Solve for x
    x = 101,773,308,470.99/352,380.54
  6. Step 6: Final answer
    x = 288,816.48

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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.