Home / 272,728.20-409,286.70-154,273.80

Finding the Fourth Proportional to 272,728.20, 409,286.70 and 154,273.80

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Solution

The fourth proportional to 272,728.20, 409,286.70 and 154,273.80 is: 231,520.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,728.20 : 409,286.70 = 154,273.80 : x
  2. Step 2: Convert to fraction form
    272,728.20/409,286.70 = 154,273.80/x
  3. Step 3: Cross multiply
    272,728.20x = 409,286.70 × 154,273.80
  4. Step 4: Simplify right side
    272,728.20x = 63,142,214,498.46
  5. Step 5: Solve for x
    x = 63,142,214,498.46/272,728.20
  6. Step 6: Final answer
    x = 231,520.67

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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.