Home / 453,940.20-680,910.30-121,516.20

Finding the Fourth Proportional to 453,940.20, 680,910.30 and 121,516.20

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Solution

The fourth proportional to 453,940.20, 680,910.30 and 121,516.20 is: 182,274.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,940.20 : 680,910.30 = 121,516.20 : x
  2. Step 2: Convert to fraction form
    453,940.20/680,910.30 = 121,516.20/x
  3. Step 3: Cross multiply
    453,940.20x = 680,910.30 × 121,516.20
  4. Step 4: Simplify right side
    453,940.20x = 82,741,632,196.86
  5. Step 5: Solve for x
    x = 82,741,632,196.86/453,940.20
  6. Step 6: Final answer
    x = 182,274.30

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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.