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Finding the Fourth Proportional to 279,594.28, 385,849.38 and 158,740.84

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Solution

The fourth proportional to 279,594.28, 385,849.38 and 158,740.84 is: 219,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,594.28 : 385,849.38 = 158,740.84 : x
  2. Step 2: Convert to fraction form
    279,594.28/385,849.38 = 158,740.84/x
  3. Step 3: Cross multiply
    279,594.28x = 385,849.38 × 158,740.84
  4. Step 4: Simplify right side
    279,594.28x = 61,250,054,694.68
  5. Step 5: Solve for x
    x = 61,250,054,694.68/279,594.28
  6. Step 6: Final answer
    x = 219,067.62

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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.