Home / 419,171.18-578,456.22-228,185.96

Finding the Fourth Proportional to 419,171.18, 578,456.22 and 228,185.96

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Solution

The fourth proportional to 419,171.18, 578,456.22 and 228,185.96 is: 314,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,171.18 : 578,456.22 = 228,185.96 : x
  2. Step 2: Convert to fraction form
    419,171.18/578,456.22 = 228,185.96/x
  3. Step 3: Cross multiply
    419,171.18x = 578,456.22 × 228,185.96
  4. Step 4: Simplify right side
    419,171.18x = 131,995,587,878.67
  5. Step 5: Solve for x
    x = 131,995,587,878.67/419,171.18
  6. Step 6: Final answer
    x = 314,896.62

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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.