Home / 320,905.28-481,405.44-301,223.36

Finding the Fourth Proportional to 320,905.28, 481,405.44 and 301,223.36

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Solution

The fourth proportional to 320,905.28, 481,405.44 and 301,223.36 is: 451,879.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,905.28 : 481,405.44 = 301,223.36 : x
  2. Step 2: Convert to fraction form
    320,905.28/481,405.44 = 301,223.36/x
  3. Step 3: Cross multiply
    320,905.28x = 481,405.44 × 301,223.36
  4. Step 4: Simplify right side
    320,905.28x = 145,010,564,159.08
  5. Step 5: Solve for x
    x = 145,010,564,159.08/320,905.28
  6. Step 6: Final answer
    x = 451,879.65

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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.