Home / 321,440.16-443,601.36-213,837.60

Finding the Fourth Proportional to 321,440.16, 443,601.36 and 213,837.60

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Solution

The fourth proportional to 321,440.16, 443,601.36 and 213,837.60 is: 295,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,440.16 : 443,601.36 = 213,837.60 : x
  2. Step 2: Convert to fraction form
    321,440.16/443,601.36 = 213,837.60/x
  3. Step 3: Cross multiply
    321,440.16x = 443,601.36 × 213,837.60
  4. Step 4: Simplify right side
    321,440.16x = 94,858,650,179.14
  5. Step 5: Solve for x
    x = 94,858,650,179.14/321,440.16
  6. Step 6: Final answer
    x = 295,105.16

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1.5x scale

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.