Home / 268,535.18-402,912.24-172,579.88

Finding the Fourth Proportional to 268,535.18, 402,912.24 and 172,579.88

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Solution

The fourth proportional to 268,535.18, 402,912.24 and 172,579.88 is: 258,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,535.18 : 402,912.24 = 172,579.88 : x
  2. Step 2: Convert to fraction form
    268,535.18/402,912.24 = 172,579.88/x
  3. Step 3: Cross multiply
    268,535.18x = 402,912.24 × 172,579.88
  4. Step 4: Simplify right side
    268,535.18x = 69,534,546,029.73
  5. Step 5: Solve for x
    x = 69,534,546,029.73/268,535.18
  6. Step 6: Final answer
    x = 258,940.17

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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.