Home / 320,815.20-481,568.40-180,847.20

Finding the Fourth Proportional to 320,815.20, 481,568.40 and 180,847.20

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Solution

The fourth proportional to 320,815.20, 481,568.40 and 180,847.20 is: 271,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,815.20 : 481,568.40 = 180,847.20 : x
  2. Step 2: Convert to fraction form
    320,815.20/481,568.40 = 180,847.20/x
  3. Step 3: Cross multiply
    320,815.20x = 481,568.40 × 180,847.20
  4. Step 4: Simplify right side
    320,815.20x = 87,090,296,748.48
  5. Step 5: Solve for x
    x = 87,090,296,748.48/320,815.20
  6. Step 6: Final answer
    x = 271,465.62

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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.