Home / 288,979.20-433,536.48-120,609.60

Finding the Fourth Proportional to 288,979.20, 433,536.48 and 120,609.60

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Solution

The fourth proportional to 288,979.20, 433,536.48 and 120,609.60 is: 180,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,979.20 : 433,536.48 = 120,609.60 : x
  2. Step 2: Convert to fraction form
    288,979.20/433,536.48 = 120,609.60/x
  3. Step 3: Cross multiply
    288,979.20x = 433,536.48 × 120,609.60
  4. Step 4: Simplify right side
    288,979.20x = 52,288,661,438.21
  5. Step 5: Solve for x
    x = 52,288,661,438.21/288,979.20
  6. Step 6: Final answer
    x = 180,942.65

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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.