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Finding the Fourth Proportional to 347,960.25, 521,940.38 and 85,304.25

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Solution

The fourth proportional to 347,960.25, 521,940.38 and 85,304.25 is: 127,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,960.25 : 521,940.38 = 85,304.25 : x
  2. Step 2: Convert to fraction form
    347,960.25/521,940.38 = 85,304.25/x
  3. Step 3: Cross multiply
    347,960.25x = 521,940.38 × 85,304.25
  4. Step 4: Simplify right side
    347,960.25x = 44,523,732,234.09
  5. Step 5: Solve for x
    x = 44,523,732,234.09/347,960.25
  6. Step 6: Final answer
    x = 127,956.38

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1.5x scale

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.