Home / 272,206.20-408,309.30-82,666.20

Finding the Fourth Proportional to 272,206.20, 408,309.30 and 82,666.20

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Solution

The fourth proportional to 272,206.20, 408,309.30 and 82,666.20 is: 123,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,206.20 : 408,309.30 = 82,666.20 : x
  2. Step 2: Convert to fraction form
    272,206.20/408,309.30 = 82,666.20/x
  3. Step 3: Cross multiply
    272,206.20x = 408,309.30 × 82,666.20
  4. Step 4: Simplify right side
    272,206.20x = 33,753,378,255.66
  5. Step 5: Solve for x
    x = 33,753,378,255.66/272,206.20
  6. Step 6: Final answer
    x = 123,999.30

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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.