Home / 330,639.56-456,287.14-179,739.80

Finding the Fourth Proportional to 330,639.56, 456,287.14 and 179,739.80

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Solution

The fourth proportional to 330,639.56, 456,287.14 and 179,739.80 is: 248,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,639.56 : 456,287.14 = 179,739.80 : x
  2. Step 2: Convert to fraction form
    330,639.56/456,287.14 = 179,739.80/x
  3. Step 3: Cross multiply
    330,639.56x = 456,287.14 × 179,739.80
  4. Step 4: Simplify right side
    330,639.56x = 82,012,959,286.17
  5. Step 5: Solve for x
    x = 82,012,959,286.17/330,639.56
  6. Step 6: Final answer
    x = 248,043.40

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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.