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Finding the Fourth Proportional to 291,197.88, 401,791.07 and 170,315.57

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Solution

The fourth proportional to 291,197.88, 401,791.07 and 170,315.57 is: 234,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,197.88 : 401,791.07 = 170,315.57 : x
  2. Step 2: Convert to fraction form
    291,197.88/401,791.07 = 170,315.57/x
  3. Step 3: Cross multiply
    291,197.88x = 401,791.07 × 170,315.57
  4. Step 4: Simplify right side
    291,197.88x = 68,431,276,538.23
  5. Step 5: Solve for x
    x = 68,431,276,538.23/291,197.88
  6. Step 6: Final answer
    x = 234,999.23

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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.