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Finding the Fourth Proportional to 351,179.82, 484,543.82 and 213,355.98

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Solution

The fourth proportional to 351,179.82, 484,543.82 and 213,355.98 is: 294,380.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,179.82 : 484,543.82 = 213,355.98 : x
  2. Step 2: Convert to fraction form
    351,179.82/484,543.82 = 213,355.98/x
  3. Step 3: Cross multiply
    351,179.82x = 484,543.82 × 213,355.98
  4. Step 4: Simplify right side
    351,179.82x = 103,380,321,569.04
  5. Step 5: Solve for x
    x = 103,380,321,569.04/351,179.82
  6. Step 6: Final answer
    x = 294,380.02

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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.