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Finding the Fourth Proportional to 279,611.88, 385,914.43 and 164,883.57

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Solution

The fourth proportional to 279,611.88, 385,914.43 and 164,883.57 is: 227,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,611.88 : 385,914.43 = 164,883.57 : x
  2. Step 2: Convert to fraction form
    279,611.88/385,914.43 = 164,883.57/x
  3. Step 3: Cross multiply
    279,611.88x = 385,914.43 × 164,883.57
  4. Step 4: Simplify right side
    279,611.88x = 63,630,948,621.81
  5. Step 5: Solve for x
    x = 63,630,948,621.81/279,611.88
  6. Step 6: Final answer
    x = 227,568.83

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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.