Home / 320,650.22-480,603.54-120,842.66

Finding the Fourth Proportional to 320,650.22, 480,603.54 and 120,842.66

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Solution

The fourth proportional to 320,650.22, 480,603.54 and 120,842.66 is: 181,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,650.22 : 480,603.54 = 120,842.66 : x
  2. Step 2: Convert to fraction form
    320,650.22/480,603.54 = 120,842.66/x
  3. Step 3: Cross multiply
    320,650.22x = 480,603.54 × 120,842.66
  4. Step 4: Simplify right side
    320,650.22x = 58,077,410,179.02
  5. Step 5: Solve for x
    x = 58,077,410,179.02/320,650.22
  6. Step 6: Final answer
    x = 181,123.87

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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.