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Finding the Fourth Proportional to 347,680.60, 521,520.90 and 264,736.60

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Solution

The fourth proportional to 347,680.60, 521,520.90 and 264,736.60 is: 397,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,680.60 : 521,520.90 = 264,736.60 : x
  2. Step 2: Convert to fraction form
    347,680.60/521,520.90 = 264,736.60/x
  3. Step 3: Cross multiply
    347,680.60x = 521,520.90 × 264,736.60
  4. Step 4: Simplify right side
    347,680.60x = 138,065,669,894.94
  5. Step 5: Solve for x
    x = 138,065,669,894.94/347,680.60
  6. Step 6: Final answer
    x = 397,104.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.