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Finding the Fourth Proportional to 418,118.44, 577,009.62 and 227,135.56

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Solution

The fourth proportional to 418,118.44, 577,009.62 and 227,135.56 is: 313,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,118.44 : 577,009.62 = 227,135.56 : x
  2. Step 2: Convert to fraction form
    418,118.44/577,009.62 = 227,135.56/x
  3. Step 3: Cross multiply
    418,118.44x = 577,009.62 × 227,135.56
  4. Step 4: Simplify right side
    418,118.44x = 131,059,403,164.09
  5. Step 5: Solve for x
    x = 131,059,403,164.09/418,118.44
  6. Step 6: Final answer
    x = 313,450.43

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1.5x scale

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.