Home / 320,627.52-480,481.20-180,090.36

Finding the Fourth Proportional to 320,627.52, 480,481.20 and 180,090.36

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Solution

The fourth proportional to 320,627.52, 480,481.20 and 180,090.36 is: 269,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,627.52 : 480,481.20 = 180,090.36 : x
  2. Step 2: Convert to fraction form
    320,627.52/480,481.20 = 180,090.36/x
  3. Step 3: Cross multiply
    320,627.52x = 480,481.20 × 180,090.36
  4. Step 4: Simplify right side
    320,627.52x = 86,530,032,281.23
  5. Step 5: Solve for x
    x = 86,530,032,281.23/320,627.52
  6. Step 6: Final answer
    x = 269,877.12

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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.