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Finding the Fourth Proportional to 303,076.89, 418,164.08 and 172,252.71

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Solution

The fourth proportional to 303,076.89, 418,164.08 and 172,252.71 is: 237,662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,076.89 : 418,164.08 = 172,252.71 : x
  2. Step 2: Convert to fraction form
    303,076.89/418,164.08 = 172,252.71/x
  3. Step 3: Cross multiply
    303,076.89x = 418,164.08 × 172,252.71
  4. Step 4: Simplify right side
    303,076.89x = 72,029,895,143.39
  5. Step 5: Solve for x
    x = 72,029,895,143.39/303,076.89
  6. Step 6: Final answer
    x = 237,662.12

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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.