Home / 320,970.92-442,939.08-185,003.78

Finding the Fourth Proportional to 320,970.92, 442,939.08 and 185,003.78

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Solution

The fourth proportional to 320,970.92, 442,939.08 and 185,003.78 is: 255,304.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,970.92 : 442,939.08 = 185,003.78 : x
  2. Step 2: Convert to fraction form
    320,970.92/442,939.08 = 185,003.78/x
  3. Step 3: Cross multiply
    320,970.92x = 442,939.08 × 185,003.78
  4. Step 4: Simplify right side
    320,970.92x = 81,945,404,109.72
  5. Step 5: Solve for x
    x = 81,945,404,109.72/320,970.92
  6. Step 6: Final answer
    x = 255,304.76

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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.