Home / 320,837.60-481,969.20-268,349.60

Finding the Fourth Proportional to 320,837.60, 481,969.20 and 268,349.60

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Solution

The fourth proportional to 320,837.60, 481,969.20 and 268,349.60 is: 403,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,837.60 : 481,969.20 = 268,349.60 : x
  2. Step 2: Convert to fraction form
    320,837.60/481,969.20 = 268,349.60/x
  3. Step 3: Cross multiply
    320,837.60x = 481,969.20 × 268,349.60
  4. Step 4: Simplify right side
    320,837.60x = 129,336,242,032.32
  5. Step 5: Solve for x
    x = 129,336,242,032.32/320,837.60
  6. Step 6: Final answer
    x = 403,120.59

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1.5x scale

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.