Home / 340,979.12-511,450.20-104,321.76

Finding the Fourth Proportional to 340,979.12, 511,450.20 and 104,321.76

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Solution

The fourth proportional to 340,979.12, 511,450.20 and 104,321.76 is: 156,476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,979.12 : 511,450.20 = 104,321.76 : x
  2. Step 2: Convert to fraction form
    340,979.12/511,450.20 = 104,321.76/x
  3. Step 3: Cross multiply
    340,979.12x = 511,450.20 × 104,321.76
  4. Step 4: Simplify right side
    340,979.12x = 53,355,385,016.35
  5. Step 5: Solve for x
    x = 53,355,385,016.35/340,979.12
  6. Step 6: Final answer
    x = 156,476.99

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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.