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Finding the Fourth Proportional to 356,274.84, 491,659.02 and 195,129.12

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Solution

The fourth proportional to 356,274.84, 491,659.02 and 195,129.12 is: 269,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,274.84 : 491,659.02 = 195,129.12 : x
  2. Step 2: Convert to fraction form
    356,274.84/491,659.02 = 195,129.12/x
  3. Step 3: Cross multiply
    356,274.84x = 491,659.02 × 195,129.12
  4. Step 4: Simplify right side
    356,274.84x = 95,936,991,912.66
  5. Step 5: Solve for x
    x = 95,936,991,912.66/356,274.84
  6. Step 6: Final answer
    x = 269,278.04

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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.