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Finding the Fourth Proportional to 303,555.66, 418,907.45 and 167,589.87

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Solution

The fourth proportional to 303,555.66, 418,907.45 and 167,589.87 is: 231,274.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,555.66 : 418,907.45 = 167,589.87 : x
  2. Step 2: Convert to fraction form
    303,555.66/418,907.45 = 167,589.87/x
  3. Step 3: Cross multiply
    303,555.66x = 418,907.45 × 167,589.87
  4. Step 4: Simplify right side
    303,555.66x = 70,204,644,249.58
  5. Step 5: Solve for x
    x = 70,204,644,249.58/303,555.66
  6. Step 6: Final answer
    x = 231,274.37

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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.