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Finding the Fourth Proportional to 379,102.15, 523,250.70 and 218,050.25

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Solution

The fourth proportional to 379,102.15, 523,250.70 and 218,050.25 is: 300,960.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,102.15 : 523,250.70 = 218,050.25 : x
  2. Step 2: Convert to fraction form
    379,102.15/523,250.70 = 218,050.25/x
  3. Step 3: Cross multiply
    379,102.15x = 523,250.70 × 218,050.25
  4. Step 4: Simplify right side
    379,102.15x = 114,094,945,947.68
  5. Step 5: Solve for x
    x = 114,094,945,947.68/379,102.15
  6. Step 6: Final answer
    x = 300,960.96

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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.