Home / 315,839.20-435,855.44-172,598

Finding the Fourth Proportional to 315,839.20, 435,855.44 and 172,598

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Solution

The fourth proportional to 315,839.20, 435,855.44 and 172,598 is: 238,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,839.20 : 435,855.44 = 172,598 : x
  2. Step 2: Convert to fraction form
    315,839.20/435,855.44 = 172,598/x
  3. Step 3: Cross multiply
    315,839.20x = 435,855.44 × 172,598
  4. Step 4: Simplify right side
    315,839.20x = 75,227,777,233.12
  5. Step 5: Solve for x
    x = 75,227,777,233.12/315,839.20
  6. Step 6: Final answer
    x = 238,183.79

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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.