Home / 213,496.22-319,997.77-80,291.45

Finding the Fourth Proportional to 213,496.22, 319,997.77 and 80,291.45

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Solution

The fourth proportional to 213,496.22, 319,997.77 and 80,291.45 is: 120,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,496.22 : 319,997.77 = 80,291.45 : x
  2. Step 2: Convert to fraction form
    213,496.22/319,997.77 = 80,291.45/x
  3. Step 3: Cross multiply
    213,496.22x = 319,997.77 × 80,291.45
  4. Step 4: Simplify right side
    213,496.22x = 25,693,084,950.07
  5. Step 5: Solve for x
    x = 25,693,084,950.07/213,496.22
  6. Step 6: Final answer
    x = 120,344.45

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1.5x scale

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.