Home / 418,090.21-576,976.98-227,116.51

Finding the Fourth Proportional to 418,090.21, 576,976.98 and 227,116.51

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Solution

The fourth proportional to 418,090.21, 576,976.98 and 227,116.51 is: 313,427.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,090.21 : 576,976.98 = 227,116.51 : x
  2. Step 2: Convert to fraction form
    418,090.21/576,976.98 = 227,116.51/x
  3. Step 3: Cross multiply
    418,090.21x = 576,976.98 × 227,116.51
  4. Step 4: Simplify right side
    418,090.21x = 131,040,998,047.94
  5. Step 5: Solve for x
    x = 131,040,998,047.94/418,090.21
  6. Step 6: Final answer
    x = 313,427.57

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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.