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Finding the Fourth Proportional to 170,791.52, 235,170.54 and 154,771.76

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Solution

The fourth proportional to 170,791.52, 235,170.54 and 154,771.76 is: 213,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,791.52 : 235,170.54 = 154,771.76 : x
  2. Step 2: Convert to fraction form
    170,791.52/235,170.54 = 154,771.76/x
  3. Step 3: Cross multiply
    170,791.52x = 235,170.54 × 154,771.76
  4. Step 4: Simplify right side
    170,791.52x = 36,397,758,375.95
  5. Step 5: Solve for x
    x = 36,397,758,375.95/170,791.52
  6. Step 6: Final answer
    x = 213,112.21

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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.