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Finding the Fourth Proportional to 393,635.57, 590,449.48 and 180,343.00

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Solution

The fourth proportional to 393,635.57, 590,449.48 and 180,343.00 is: 270,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,635.57 : 590,449.48 = 180,343.00 : x
  2. Step 2: Convert to fraction form
    393,635.57/590,449.48 = 180,343.00/x
  3. Step 3: Cross multiply
    393,635.57x = 590,449.48 × 180,343.00
  4. Step 4: Simplify right side
    393,635.57x = 106,483,428,644.66
  5. Step 5: Solve for x
    x = 106,483,428,644.66/393,635.57
  6. Step 6: Final answer
    x = 270,512.72

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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.