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Finding the Fourth Proportional to 351,804, 485,488.29 and 190,663

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Solution

The fourth proportional to 351,804, 485,488.29 and 190,663 is: 263,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,804 : 485,488.29 = 190,663 : x
  2. Step 2: Convert to fraction form
    351,804/485,488.29 = 190,663/x
  3. Step 3: Cross multiply
    351,804x = 485,488.29 × 190,663
  4. Step 4: Simplify right side
    351,804x = 92,564,653,836.27
  5. Step 5: Solve for x
    x = 92,564,653,836.27/351,804
  6. Step 6: Final answer
    x = 263,114.27

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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.