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Finding the Fourth Proportional to 279,383.49, 385,537.77 and 158,522.18

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Solution

The fourth proportional to 279,383.49, 385,537.77 and 158,522.18 is: 218,754.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,383.49 : 385,537.77 = 158,522.18 : x
  2. Step 2: Convert to fraction form
    279,383.49/385,537.77 = 158,522.18/x
  3. Step 3: Cross multiply
    279,383.49x = 385,537.77 × 158,522.18
  4. Step 4: Simplify right side
    279,383.49x = 61,116,285,845.05
  5. Step 5: Solve for x
    x = 61,116,285,845.05/279,383.49
  6. Step 6: Final answer
    x = 218,754.11

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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.