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Finding the Fourth Proportional to 351,997.65, 485,944.72 and 275,353.63

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Solution

The fourth proportional to 351,997.65, 485,944.72 and 275,353.63 is: 380,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,997.65 : 485,944.72 = 275,353.63 : x
  2. Step 2: Convert to fraction form
    351,997.65/485,944.72 = 275,353.63/x
  3. Step 3: Cross multiply
    351,997.65x = 485,944.72 × 275,353.63
  4. Step 4: Simplify right side
    351,997.65x = 133,806,640,728.09
  5. Step 5: Solve for x
    x = 133,806,640,728.09/351,997.65
  6. Step 6: Final answer
    x = 380,135.04

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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.