Home / 320,500.80-480,829.92-110,141.76

Finding the Fourth Proportional to 320,500.80, 480,829.92 and 110,141.76

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Solution

The fourth proportional to 320,500.80, 480,829.92 and 110,141.76 is: 165,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,500.80 : 480,829.92 = 110,141.76 : x
  2. Step 2: Convert to fraction form
    320,500.80/480,829.92 = 110,141.76/x
  3. Step 3: Cross multiply
    320,500.80x = 480,829.92 × 110,141.76
  4. Step 4: Simplify right side
    320,500.80x = 52,959,453,649.46
  5. Step 5: Solve for x
    x = 52,959,453,649.46/320,500.80
  6. Step 6: Final answer
    x = 165,239.69

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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.