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Finding the Fourth Proportional to 347,245.81, 479,217.78 and 194,274.88

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Solution

The fourth proportional to 347,245.81, 479,217.78 and 194,274.88 is: 268,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,245.81 : 479,217.78 = 194,274.88 : x
  2. Step 2: Convert to fraction form
    347,245.81/479,217.78 = 194,274.88/x
  3. Step 3: Cross multiply
    347,245.81x = 479,217.78 × 194,274.88
  4. Step 4: Simplify right side
    347,245.81x = 93,099,976,703.37
  5. Step 5: Solve for x
    x = 93,099,976,703.37/347,245.81
  6. Step 6: Final answer
    x = 268,109.72

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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.