Home / 272,140.20-408,015.90-122,257.80

Finding the Fourth Proportional to 272,140.20, 408,015.90 and 122,257.80

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Solution

The fourth proportional to 272,140.20, 408,015.90 and 122,257.80 is: 183,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,140.20 : 408,015.90 = 122,257.80 : x
  2. Step 2: Convert to fraction form
    272,140.20/408,015.90 = 122,257.80/x
  3. Step 3: Cross multiply
    272,140.20x = 408,015.90 × 122,257.80
  4. Step 4: Simplify right side
    272,140.20x = 49,883,126,299.02
  5. Step 5: Solve for x
    x = 49,883,126,299.02/272,140.20
  6. Step 6: Final answer
    x = 183,299.37

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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.