Home / 272,140.45-408,210.68-82,600.45

Finding the Fourth Proportional to 272,140.45, 408,210.68 and 82,600.45

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Solution

The fourth proportional to 272,140.45, 408,210.68 and 82,600.45 is: 123,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,140.45 : 408,210.68 = 82,600.45 : x
  2. Step 2: Convert to fraction form
    272,140.45/408,210.68 = 82,600.45/x
  3. Step 3: Cross multiply
    272,140.45x = 408,210.68 × 82,600.45
  4. Step 4: Simplify right side
    272,140.45x = 33,718,385,449.80
  5. Step 5: Solve for x
    x = 33,718,385,449.80/272,140.45
  6. Step 6: Final answer
    x = 123,900.68

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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.