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Finding the Fourth Proportional to 418,237.42, 627,003.48 and 181,401.82

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Solution

The fourth proportional to 418,237.42, 627,003.48 and 181,401.82 is: 271,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,237.42 : 627,003.48 = 181,401.82 : x
  2. Step 2: Convert to fraction form
    418,237.42/627,003.48 = 181,401.82/x
  3. Step 3: Cross multiply
    418,237.42x = 627,003.48 × 181,401.82
  4. Step 4: Simplify right side
    418,237.42x = 113,739,572,418.33
  5. Step 5: Solve for x
    x = 113,739,572,418.33/418,237.42
  6. Step 6: Final answer
    x = 271,949.78

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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.