Home / 345,976.20-519,110.10-188,317.80

Finding the Fourth Proportional to 345,976.20, 519,110.10 and 188,317.80

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Solution

The fourth proportional to 345,976.20, 519,110.10 and 188,317.80 is: 282,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,976.20 : 519,110.10 = 188,317.80 : x
  2. Step 2: Convert to fraction form
    345,976.20/519,110.10 = 188,317.80/x
  3. Step 3: Cross multiply
    345,976.20x = 519,110.10 × 188,317.80
  4. Step 4: Simplify right side
    345,976.20x = 97,757,671,989.78
  5. Step 5: Solve for x
    x = 97,757,671,989.78/345,976.20
  6. Step 6: Final answer
    x = 282,556.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.