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Finding the Fourth Proportional to 180,303.17, 270,380.94 and 80,395.03

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Solution

The fourth proportional to 180,303.17, 270,380.94 and 80,395.03 is: 120,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,303.17 : 270,380.94 = 80,395.03 : x
  2. Step 2: Convert to fraction form
    180,303.17/270,380.94 = 80,395.03/x
  3. Step 3: Cross multiply
    180,303.17x = 270,380.94 × 80,395.03
  4. Step 4: Simplify right side
    180,303.17x = 21,737,283,819.22
  5. Step 5: Solve for x
    x = 21,737,283,819.22/180,303.17
  6. Step 6: Final answer
    x = 120,559.64

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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.