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Finding the Fourth Proportional to 273,209.40, 409,635.90 and 245,215.80

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Solution

The fourth proportional to 273,209.40, 409,635.90 and 245,215.80 is: 367,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,209.40 : 409,635.90 = 245,215.80 : x
  2. Step 2: Convert to fraction form
    273,209.40/409,635.90 = 245,215.80/x
  3. Step 3: Cross multiply
    273,209.40x = 409,635.90 × 245,215.80
  4. Step 4: Simplify right side
    273,209.40x = 100,449,194,927.22
  5. Step 5: Solve for x
    x = 100,449,194,927.22/273,209.40
  6. Step 6: Final answer
    x = 367,663.76

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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.