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Finding the Fourth Proportional to 347,707.40, 521,906.70 and 170,414.60

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Solution

The fourth proportional to 347,707.40, 521,906.70 and 170,414.60 is: 255,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,707.40 : 521,906.70 = 170,414.60 : x
  2. Step 2: Convert to fraction form
    347,707.40/521,906.70 = 170,414.60/x
  3. Step 3: Cross multiply
    347,707.40x = 521,906.70 × 170,414.60
  4. Step 4: Simplify right side
    347,707.40x = 88,940,521,517.82
  5. Step 5: Solve for x
    x = 88,940,521,517.82/347,707.40
  6. Step 6: Final answer
    x = 255,791.28

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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.