Home / 310,844.96-428,927.71-196,080.29

Finding the Fourth Proportional to 310,844.96, 428,927.71 and 196,080.29

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Solution

The fourth proportional to 310,844.96, 428,927.71 and 196,080.29 is: 270,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,844.96 : 428,927.71 = 196,080.29 : x
  2. Step 2: Convert to fraction form
    310,844.96/428,927.71 = 196,080.29/x
  3. Step 3: Cross multiply
    310,844.96x = 428,927.71 × 196,080.29
  4. Step 4: Simplify right side
    310,844.96x = 84,104,269,765.84
  5. Step 5: Solve for x
    x = 84,104,269,765.84/310,844.96
  6. Step 6: Final answer
    x = 270,566.62

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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.