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Finding the Fourth Proportional to 279,529.62, 385,757.21 and 158,659.60

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Solution

The fourth proportional to 279,529.62, 385,757.21 and 158,659.60 is: 218,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,529.62 : 385,757.21 = 158,659.60 : x
  2. Step 2: Convert to fraction form
    279,529.62/385,757.21 = 158,659.60/x
  3. Step 3: Cross multiply
    279,529.62x = 385,757.21 × 158,659.60
  4. Step 4: Simplify right side
    279,529.62x = 61,204,084,635.72
  5. Step 5: Solve for x
    x = 61,204,084,635.72/279,529.62
  6. Step 6: Final answer
    x = 218,953.84

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1.5x scale

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.