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Finding the Fourth Proportional to 303,479.36, 418,843.68 and 169,352

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Solution

The fourth proportional to 303,479.36, 418,843.68 and 169,352 is: 233,729.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,479.36 : 418,843.68 = 169,352 : x
  2. Step 2: Convert to fraction form
    303,479.36/418,843.68 = 169,352/x
  3. Step 3: Cross multiply
    303,479.36x = 418,843.68 × 169,352
  4. Step 4: Simplify right side
    303,479.36x = 70,932,014,895.36
  5. Step 5: Solve for x
    x = 70,932,014,895.36/303,479.36
  6. Step 6: Final answer
    x = 233,729.29

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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.