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Finding the Fourth Proportional to 347,471.12, 479,512 and 196,564.88

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Solution

The fourth proportional to 347,471.12, 479,512 and 196,564.88 is: 271,260.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,471.12 : 479,512 = 196,564.88 : x
  2. Step 2: Convert to fraction form
    347,471.12/479,512 = 196,564.88/x
  3. Step 3: Cross multiply
    347,471.12x = 479,512 × 196,564.88
  4. Step 4: Simplify right side
    347,471.12x = 94,255,218,738.56
  5. Step 5: Solve for x
    x = 94,255,218,738.56/347,471.12
  6. Step 6: Final answer
    x = 271,260.58

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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.