Home / 320,705.09-442,619.96-184,712.88

Finding the Fourth Proportional to 320,705.09, 442,619.96 and 184,712.88

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Solution

The fourth proportional to 320,705.09, 442,619.96 and 184,712.88 is: 254,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,705.09 : 442,619.96 = 184,712.88 : x
  2. Step 2: Convert to fraction form
    320,705.09/442,619.96 = 184,712.88/x
  3. Step 3: Cross multiply
    320,705.09x = 442,619.96 × 184,712.88
  4. Step 4: Simplify right side
    320,705.09x = 81,757,607,557.08
  5. Step 5: Solve for x
    x = 81,757,607,557.08/320,705.09
  6. Step 6: Final answer
    x = 254,930.81

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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.