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Finding the Fourth Proportional to 279,469.08, 385,667.22 and 152,144.64

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Solution

The fourth proportional to 279,469.08, 385,667.22 and 152,144.64 is: 209,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,469.08 : 385,667.22 = 152,144.64 : x
  2. Step 2: Convert to fraction form
    279,469.08/385,667.22 = 152,144.64/x
  3. Step 3: Cross multiply
    279,469.08x = 385,667.22 × 152,144.64
  4. Step 4: Simplify right side
    279,469.08x = 58,677,200,346.70
  5. Step 5: Solve for x
    x = 58,677,200,346.70/279,469.08
  6. Step 6: Final answer
    x = 209,959.54

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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.