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Finding the Fourth Proportional to 303,203.59, 418,104.38 and 211,429.54

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Solution

The fourth proportional to 303,203.59, 418,104.38 and 211,429.54 is: 291,552.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,203.59 : 418,104.38 = 211,429.54 : x
  2. Step 2: Convert to fraction form
    303,203.59/418,104.38 = 211,429.54/x
  3. Step 3: Cross multiply
    303,203.59x = 418,104.38 × 211,429.54
  4. Step 4: Simplify right side
    303,203.59x = 88,399,617,786.59
  5. Step 5: Solve for x
    x = 88,399,617,786.59/303,203.59
  6. Step 6: Final answer
    x = 291,552.02

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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.