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Finding the Fourth Proportional to 310,052.56, 427,578.60 and 202,714.60

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Solution

The fourth proportional to 310,052.56, 427,578.60 and 202,714.60 is: 279,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,052.56 : 427,578.60 = 202,714.60 : x
  2. Step 2: Convert to fraction form
    310,052.56/427,578.60 = 202,714.60/x
  3. Step 3: Cross multiply
    310,052.56x = 427,578.60 × 202,714.60
  4. Step 4: Simplify right side
    310,052.56x = 86,676,424,867.56
  5. Step 5: Solve for x
    x = 86,676,424,867.56/310,052.56
  6. Step 6: Final answer
    x = 279,553.97

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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.