Home / 320,193.11-480,289.68-120,558.29

Finding the Fourth Proportional to 320,193.11, 480,289.68 and 120,558.29

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Solution

The fourth proportional to 320,193.11, 480,289.68 and 120,558.29 is: 180,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,193.11 : 480,289.68 = 120,558.29 : x
  2. Step 2: Convert to fraction form
    320,193.11/480,289.68 = 120,558.29/x
  3. Step 3: Cross multiply
    320,193.11x = 480,289.68 × 120,558.29
  4. Step 4: Simplify right side
    320,193.11x = 57,902,900,124.00
  5. Step 5: Solve for x
    x = 57,902,900,124.00/320,193.11
  6. Step 6: Final answer
    x = 180,837.43

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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.