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Finding the Fourth Proportional to 351,579.65, 485,179.94 and 190,434.76

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Solution

The fourth proportional to 351,579.65, 485,179.94 and 190,434.76 is: 262,799.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,579.65 : 485,179.94 = 190,434.76 : x
  2. Step 2: Convert to fraction form
    351,579.65/485,179.94 = 190,434.76/x
  3. Step 3: Cross multiply
    351,579.65x = 485,179.94 × 190,434.76
  4. Step 4: Simplify right side
    351,579.65x = 92,395,122,052.64
  5. Step 5: Solve for x
    x = 92,395,122,052.64/351,579.65
  6. Step 6: Final answer
    x = 262,799.97

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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.