Home / 329,828.20-494,742.30-163,940.20

Finding the Fourth Proportional to 329,828.20, 494,742.30 and 163,940.20

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Solution

The fourth proportional to 329,828.20, 494,742.30 and 163,940.20 is: 245,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,828.20 : 494,742.30 = 163,940.20 : x
  2. Step 2: Convert to fraction form
    329,828.20/494,742.30 = 163,940.20/x
  3. Step 3: Cross multiply
    329,828.20x = 494,742.30 × 163,940.20
  4. Step 4: Simplify right side
    329,828.20x = 81,108,151,610.46
  5. Step 5: Solve for x
    x = 81,108,151,610.46/329,828.20
  6. Step 6: Final answer
    x = 245,910.30

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Double scale
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Similar ratio
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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.