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Finding the Fourth Proportional to 303,388.50, 418,676.31 and 169,252.50

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Solution

The fourth proportional to 303,388.50, 418,676.31 and 169,252.50 is: 233,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,388.50 : 418,676.31 = 169,252.50 : x
  2. Step 2: Convert to fraction form
    303,388.50/418,676.31 = 169,252.50/x
  3. Step 3: Cross multiply
    303,388.50x = 418,676.31 × 169,252.50
  4. Step 4: Simplify right side
    303,388.50x = 70,862,012,158.28
  5. Step 5: Solve for x
    x = 70,862,012,158.28/303,388.50
  6. Step 6: Final answer
    x = 233,568.55

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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.