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Finding the Fourth Proportional to 279,259.08, 385,380.15 and 166,059.96

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Solution

The fourth proportional to 279,259.08, 385,380.15 and 166,059.96 is: 229,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,259.08 : 385,380.15 = 166,059.96 : x
  2. Step 2: Convert to fraction form
    279,259.08/385,380.15 = 166,059.96/x
  3. Step 3: Cross multiply
    279,259.08x = 385,380.15 × 166,059.96
  4. Step 4: Simplify right side
    279,259.08x = 63,996,212,293.79
  5. Step 5: Solve for x
    x = 63,996,212,293.79/279,259.08
  6. Step 6: Final answer
    x = 229,164.30

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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.