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Finding the Fourth Proportional to 347,272.90, 479,245.21 and 194,309.84

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Solution

The fourth proportional to 347,272.90, 479,245.21 and 194,309.84 is: 268,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,272.90 : 479,245.21 = 194,309.84 : x
  2. Step 2: Convert to fraction form
    347,272.90/479,245.21 = 194,309.84/x
  3. Step 3: Cross multiply
    347,272.90x = 479,245.21 × 194,309.84
  4. Step 4: Simplify right side
    347,272.90x = 93,122,060,788.20
  5. Step 5: Solve for x
    x = 93,122,060,788.20/347,272.90
  6. Step 6: Final answer
    x = 268,152.40

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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.