Home / 320,912.16-442,905.42-184,919.64

Finding the Fourth Proportional to 320,912.16, 442,905.42 and 184,919.64

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Solution

The fourth proportional to 320,912.16, 442,905.42 and 184,919.64 is: 255,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,912.16 : 442,905.42 = 184,919.64 : x
  2. Step 2: Convert to fraction form
    320,912.16/442,905.42 = 184,919.64/x
  3. Step 3: Cross multiply
    320,912.16x = 442,905.42 × 184,919.64
  4. Step 4: Simplify right side
    320,912.16x = 81,901,910,820.45
  5. Step 5: Solve for x
    x = 81,901,910,820.45/320,912.16
  6. Step 6: Final answer
    x = 255,215.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.