Home / 270,217.32-405,346.36-80,662.72

Finding the Fourth Proportional to 270,217.32, 405,346.36 and 80,662.72

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Solution

The fourth proportional to 270,217.32, 405,346.36 and 80,662.72 is: 121,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,217.32 : 405,346.36 = 80,662.72 : x
  2. Step 2: Convert to fraction form
    270,217.32/405,346.36 = 80,662.72/x
  3. Step 3: Cross multiply
    270,217.32x = 405,346.36 × 80,662.72
  4. Step 4: Simplify right side
    270,217.32x = 32,696,339,939.70
  5. Step 5: Solve for x
    x = 32,696,339,939.70/270,217.32
  6. Step 6: Final answer
    x = 121,000.16

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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.