Home / 320,080.08-480,191.55-120,402.12

Finding the Fourth Proportional to 320,080.08, 480,191.55 and 120,402.12

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Solution

The fourth proportional to 320,080.08, 480,191.55 and 120,402.12 is: 180,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,080.08 : 480,191.55 = 120,402.12 : x
  2. Step 2: Convert to fraction form
    320,080.08/480,191.55 = 120,402.12/x
  3. Step 3: Cross multiply
    320,080.08x = 480,191.55 × 120,402.12
  4. Step 4: Simplify right side
    320,080.08x = 57,816,080,626.09
  5. Step 5: Solve for x
    x = 57,816,080,626.09/320,080.08
  6. Step 6: Final answer
    x = 180,630.05

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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.