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Finding the Fourth Proportional to 279,598.87, 385,857.36 and 158,751.41

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Solution

The fourth proportional to 279,598.87, 385,857.36 and 158,751.41 is: 219,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,598.87 : 385,857.36 = 158,751.41 : x
  2. Step 2: Convert to fraction form
    279,598.87/385,857.36 = 158,751.41/x
  3. Step 3: Cross multiply
    279,598.87x = 385,857.36 × 158,751.41
  4. Step 4: Simplify right side
    279,598.87x = 61,255,399,958.88
  5. Step 5: Solve for x
    x = 61,255,399,958.88/279,598.87
  6. Step 6: Final answer
    x = 219,083.15

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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.