Home / 213,445.94-320,334.14-80,447.18

Finding the Fourth Proportional to 213,445.94, 320,334.14 and 80,447.18

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Solution

The fourth proportional to 213,445.94, 320,334.14 and 80,447.18 is: 120,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,445.94 : 320,334.14 = 80,447.18 : x
  2. Step 2: Convert to fraction form
    213,445.94/320,334.14 = 80,447.18/x
  3. Step 3: Cross multiply
    213,445.94x = 320,334.14 × 80,447.18
  4. Step 4: Simplify right side
    213,445.94x = 25,769,976,820.17
  5. Step 5: Solve for x
    x = 25,769,976,820.17/213,445.94
  6. Step 6: Final answer
    x = 120,733.04

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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.