Home / 290,822.20-436,233.30-273,311.80

Finding the Fourth Proportional to 290,822.20, 436,233.30 and 273,311.80

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Solution

The fourth proportional to 290,822.20, 436,233.30 and 273,311.80 is: 409,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,822.20 : 436,233.30 = 273,311.80 : x
  2. Step 2: Convert to fraction form
    290,822.20/436,233.30 = 273,311.80/x
  3. Step 3: Cross multiply
    290,822.20x = 436,233.30 × 273,311.80
  4. Step 4: Simplify right side
    290,822.20x = 119,227,708,442.94
  5. Step 5: Solve for x
    x = 119,227,708,442.94/290,822.20
  6. Step 6: Final answer
    x = 409,967.70

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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.