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Finding the Fourth Proportional to 270,103.17, 405,112.15 and 169,956.79

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Solution

The fourth proportional to 270,103.17, 405,112.15 and 169,956.79 is: 254,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,103.17 : 405,112.15 = 169,956.79 : x
  2. Step 2: Convert to fraction form
    270,103.17/405,112.15 = 169,956.79/x
  3. Step 3: Cross multiply
    270,103.17x = 405,112.15 × 169,956.79
  4. Step 4: Simplify right side
    270,103.17x = 68,851,561,322.83
  5. Step 5: Solve for x
    x = 68,851,561,322.83/270,103.17
  6. Step 6: Final answer
    x = 254,908.38

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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.